diff --git a/dawn.json b/dawn.json
index 7fadb940f7..569dde198d 100644
--- a/dawn.json
+++ b/dawn.json
@@ -1004,6 +1004,7 @@
     "device lost callback": {
         "category": "callback",
         "args": [
+            {"name": "reason", "type": "device lost reason"},
             {"name": "message", "type": "char", "annotation": "const*"},
             {"name": "userdata", "type": "void", "annotation": "*"}
         ]
@@ -1012,8 +1013,8 @@
         "category": "enum",
         "emscripten_no_enum_table": true,
         "values": [
-            {"name": "undefined", "value": 0, "jsrepr": "undefined"},
-            {"name": "destroyed", "value": 1}
+            {"value": 0, "name": "undefined", "jsrepr": "undefined"},
+            {"value": 1, "name": "destroyed"}
         ]
     },
     "device properties": {
diff --git a/dawn_wire.json b/dawn_wire.json
index 7d4b89c397..75526d52fe 100644
--- a/dawn_wire.json
+++ b/dawn_wire.json
@@ -118,6 +118,7 @@
         ],
         "device lost callback" : [
             { "name": "device", "type": "ObjectHandle", "handle_type": "device" },
+            { "name": "reason", "type": "device lost reason" },
             { "name": "message", "type": "char", "annotation": "const*", "length": "strlen" }
         ],
         "device pop error scope callback": [
diff --git a/src/dawn_native/Device.cpp b/src/dawn_native/Device.cpp
index 64c180db62..35f105d4f4 100644
--- a/src/dawn_native/Device.cpp
+++ b/src/dawn_native/Device.cpp
@@ -209,7 +209,7 @@ namespace dawn_native {
             }
         };
 
-        mDeviceLostCallback = [](char const*, void*) {
+        mDeviceLostCallback = [](WGPUDeviceLostReason, char const*, void*) {
             static bool calledOnce = false;
             if (!calledOnce) {
                 calledOnce = true;
@@ -365,7 +365,9 @@ namespace dawn_native {
         if (type == InternalErrorType::DeviceLost) {
             // The device was lost, call the application callback.
             if (mDeviceLostCallback != nullptr) {
-                mDeviceLostCallback(message, mDeviceLostUserdata);
+                // TODO(crbug.com/dawn/628): Make sure the "Destroyed" reason is passed if
+                // the device was destroyed.
+                mDeviceLostCallback(WGPUDeviceLostReason_Undefined, message, mDeviceLostUserdata);
                 mDeviceLostCallback = nullptr;
             }
 
diff --git a/src/dawn_wire/client/Client.cpp b/src/dawn_wire/client/Client.cpp
index a00bb5e90f..2d4445e794 100644
--- a/src/dawn_wire/client/Client.cpp
+++ b/src/dawn_wire/client/Client.cpp
@@ -138,7 +138,8 @@ namespace dawn_wire { namespace client {
         {
             for (LinkNode<ObjectBase>* device = deviceList.head(); device != deviceList.end();
                  device = device->next()) {
-                static_cast<Device*>(device->value())->HandleDeviceLost("GPU connection lost");
+                static_cast<Device*>(device->value())
+                    ->HandleDeviceLost(WGPUDeviceLostReason_Undefined, "GPU connection lost");
             }
         }
         for (auto& objectList : mObjects) {
diff --git a/src/dawn_wire/client/ClientDoers.cpp b/src/dawn_wire/client/ClientDoers.cpp
index e3e34bde15..e6665abf01 100644
--- a/src/dawn_wire/client/ClientDoers.cpp
+++ b/src/dawn_wire/client/ClientDoers.cpp
@@ -52,12 +52,14 @@ namespace dawn_wire { namespace client {
         return true;
     }
 
-    bool Client::DoDeviceLostCallback(Device* device, char const* message) {
+    bool Client::DoDeviceLostCallback(Device* device,
+                                      WGPUDeviceLostReason reason,
+                                      char const* message) {
         if (device == nullptr) {
             // The device might have been deleted or recreated so this isn't an error.
             return true;
         }
-        device->HandleDeviceLost(message);
+        device->HandleDeviceLost(reason, message);
         return true;
     }
 
diff --git a/src/dawn_wire/client/Device.cpp b/src/dawn_wire/client/Device.cpp
index 21df71e9f5..8379d51b1c 100644
--- a/src/dawn_wire/client/Device.cpp
+++ b/src/dawn_wire/client/Device.cpp
@@ -35,7 +35,7 @@ namespace dawn_wire { namespace client {
             }
         };
 
-        mDeviceLostCallback = [](char const*, void*) {
+        mDeviceLostCallback = [](WGPUDeviceLostReason, char const*, void*) {
             static bool calledOnce = false;
             if (!calledOnce) {
                 calledOnce = true;
@@ -80,10 +80,10 @@ namespace dawn_wire { namespace client {
         }
     }
 
-    void Device::HandleDeviceLost(const char* message) {
+    void Device::HandleDeviceLost(WGPUDeviceLostReason reason, const char* message) {
         if (mDeviceLostCallback && !mDidRunLostCallback) {
             mDidRunLostCallback = true;
-            mDeviceLostCallback(message, mDeviceLostUserdata);
+            mDeviceLostCallback(reason, message, mDeviceLostUserdata);
         }
     }
 
diff --git a/src/dawn_wire/client/Device.h b/src/dawn_wire/client/Device.h
index ae2d9fd5e4..426799c1eb 100644
--- a/src/dawn_wire/client/Device.h
+++ b/src/dawn_wire/client/Device.h
@@ -53,7 +53,7 @@ namespace dawn_wire { namespace client {
 
         void HandleError(WGPUErrorType errorType, const char* message);
         void HandleLogging(WGPULoggingType loggingType, const char* message);
-        void HandleDeviceLost(const char* message);
+        void HandleDeviceLost(WGPUDeviceLostReason reason, const char* message);
         bool OnPopErrorScopeCallback(uint64_t requestSerial,
                                      WGPUErrorType type,
                                      const char* message);
diff --git a/src/dawn_wire/server/Server.cpp b/src/dawn_wire/server/Server.cpp
index 7a504ef4de..8297cbdcf4 100644
--- a/src/dawn_wire/server/Server.cpp
+++ b/src/dawn_wire/server/Server.cpp
@@ -144,9 +144,9 @@ namespace dawn_wire { namespace server {
             data->info.get());
         mProcs.deviceSetDeviceLostCallback(
             device,
-            [](const char* message, void* userdata) {
+            [](WGPUDeviceLostReason reason, const char* message, void* userdata) {
                 DeviceInfo* info = static_cast<DeviceInfo*>(userdata);
-                info->server->OnDeviceLost(info->self, message);
+                info->server->OnDeviceLost(info->self, reason, message);
             },
             data->info.get());
 
diff --git a/src/dawn_wire/server/Server.h b/src/dawn_wire/server/Server.h
index 711813537d..b4429871f7 100644
--- a/src/dawn_wire/server/Server.h
+++ b/src/dawn_wire/server/Server.h
@@ -196,7 +196,7 @@ namespace dawn_wire { namespace server {
 
         // Error callbacks
         void OnUncapturedError(ObjectHandle device, WGPUErrorType type, const char* message);
-        void OnDeviceLost(ObjectHandle device, const char* message);
+        void OnDeviceLost(ObjectHandle device, WGPUDeviceLostReason reason, const char* message);
         void OnLogging(ObjectHandle device, WGPULoggingType type, const char* message);
         void OnDevicePopErrorScope(WGPUErrorType type,
                                    const char* message,
diff --git a/src/dawn_wire/server/ServerDevice.cpp b/src/dawn_wire/server/ServerDevice.cpp
index 939e632e56..c8cddf4e50 100644
--- a/src/dawn_wire/server/ServerDevice.cpp
+++ b/src/dawn_wire/server/ServerDevice.cpp
@@ -59,9 +59,12 @@ namespace dawn_wire { namespace server {
         SerializeCommand(cmd);
     }
 
-    void Server::OnDeviceLost(ObjectHandle device, const char* message) {
+    void Server::OnDeviceLost(ObjectHandle device,
+                              WGPUDeviceLostReason reason,
+                              const char* message) {
         ReturnDeviceLostCallbackCmd cmd;
         cmd.device = device;
+        cmd.reason = reason;
         cmd.message = message;
 
         SerializeCommand(cmd);
diff --git a/src/tests/DawnTest.cpp b/src/tests/DawnTest.cpp
index 23d9433a23..9f0c5021cf 100644
--- a/src/tests/DawnTest.cpp
+++ b/src/tests/DawnTest.cpp
@@ -1010,7 +1010,7 @@ void DawnTestBase::OnDeviceError(WGPUErrorType type, const char* message, void*
     self->mError = true;
 }
 
-void DawnTestBase::OnDeviceLost(const char* message, void* userdata) {
+void DawnTestBase::OnDeviceLost(WGPUDeviceLostReason reason, const char* message, void* userdata) {
     // Using ADD_FAILURE + ASSERT instead of FAIL to prevent the current test from continuing with a
     // corrupt state.
     ADD_FAILURE() << "Device Lost during test: " << message;
diff --git a/src/tests/DawnTest.h b/src/tests/DawnTest.h
index aec8a66387..206c15def7 100644
--- a/src/tests/DawnTest.h
+++ b/src/tests/DawnTest.h
@@ -492,7 +492,7 @@ class DawnTestBase {
 
     // Tracking for validation errors
     static void OnDeviceError(WGPUErrorType type, const char* message, void* userdata);
-    static void OnDeviceLost(const char* message, void* userdata);
+    static void OnDeviceLost(WGPUDeviceLostReason reason, const char* message, void* userdata);
     bool mExpectError = false;
     bool mError = false;
 
diff --git a/src/tests/end2end/DeviceLostTests.cpp b/src/tests/end2end/DeviceLostTests.cpp
index 3866a0747e..91bdabe973 100644
--- a/src/tests/end2end/DeviceLostTests.cpp
+++ b/src/tests/end2end/DeviceLostTests.cpp
@@ -25,12 +25,14 @@ using namespace testing;
 
 class MockDeviceLostCallback {
   public:
-    MOCK_METHOD(void, Call, (const char* message, void* userdata));
+    MOCK_METHOD(void, Call, (WGPUDeviceLostReason reason, const char* message, void* userdata));
 };
 
 static std::unique_ptr<MockDeviceLostCallback> mockDeviceLostCallback;
-static void ToMockDeviceLostCallback(const char* message, void* userdata) {
-    mockDeviceLostCallback->Call(message, userdata);
+static void ToMockDeviceLostCallback(WGPUDeviceLostReason reason,
+                                     const char* message,
+                                     void* userdata) {
+    mockDeviceLostCallback->Call(reason, message, userdata);
     DawnTestBase* self = static_cast<DawnTestBase*>(userdata);
     self->StartExpectDeviceError();
 }
@@ -67,7 +69,8 @@ class DeviceLostTest : public DawnTest {
     }
 
     void LoseForTesting() {
-        EXPECT_CALL(*mockDeviceLostCallback, Call(_, this)).Times(1);
+        EXPECT_CALL(*mockDeviceLostCallback, Call(WGPUDeviceLostReason_Undefined, _, this))
+            .Times(1);
         device.LoseForTesting();
     }
 
@@ -427,13 +430,13 @@ TEST_P(DeviceLostTest, QueueOnSubmittedWorkDoneBeforeLossFails) {
 // Test that LostForTesting can only be called on one time
 TEST_P(DeviceLostTest, LoseForTestingOnce) {
     // First LoseForTesting call should occur normally. The callback is already set in SetUp.
-    EXPECT_CALL(*mockDeviceLostCallback, Call(_, this)).Times(1);
+    EXPECT_CALL(*mockDeviceLostCallback, Call(WGPUDeviceLostReason_Undefined, _, this)).Times(1);
     device.LoseForTesting();
 
     // Second LoseForTesting call should result in no callbacks. The LoseForTesting will return
     // without doing anything when it sees that device has already been lost.
     device.SetDeviceLostCallback(ToMockDeviceLostCallback, this);
-    EXPECT_CALL(*mockDeviceLostCallback, Call(_, this)).Times(0);
+    EXPECT_CALL(*mockDeviceLostCallback, Call(_, _, this)).Times(0);
     device.LoseForTesting();
 }
 
diff --git a/src/tests/end2end/SwapChainValidationTests.cpp b/src/tests/end2end/SwapChainValidationTests.cpp
index 77180db0d3..1926f627c2 100644
--- a/src/tests/end2end/SwapChainValidationTests.cpp
+++ b/src/tests/end2end/SwapChainValidationTests.cpp
@@ -319,7 +319,9 @@ TEST_P(SwapChainValidationTests, SwapChainIsInvalidAfterSurfaceDestruction_After
 }
 
 // Test that after Device is Lost, all swap chain operations fail
-static void ToMockDeviceLostCallback(const char* message, void* userdata) {
+static void ToMockDeviceLostCallback(WGPUDeviceLostReason reason,
+                                     const char* message,
+                                     void* userdata) {
     DawnTest* self = static_cast<DawnTest*>(userdata);
     self->StartExpectDeviceError();
 }
diff --git a/src/tests/unittests/wire/WireDisconnectTests.cpp b/src/tests/unittests/wire/WireDisconnectTests.cpp
index 81b75b26f3..fee5858a41 100644
--- a/src/tests/unittests/wire/WireDisconnectTests.cpp
+++ b/src/tests/unittests/wire/WireDisconnectTests.cpp
@@ -69,7 +69,8 @@ TEST_F(WireDisconnectTests, CallsDeviceLostCallback) {
                                     mockDeviceLostCallback.MakeUserdata(this));
 
     // Disconnect the wire client. We should receive device lost only once.
-    EXPECT_CALL(mockDeviceLostCallback, Call(_, this)).Times(Exactly(1));
+    EXPECT_CALL(mockDeviceLostCallback, Call(WGPUDeviceLostReason_Undefined, _, this))
+        .Times(Exactly(1));
     GetWireClient()->Disconnect();
     GetWireClient()->Disconnect();
 }
@@ -80,14 +81,17 @@ TEST_F(WireDisconnectTests, ServerLostThenDisconnect) {
     wgpuDeviceSetDeviceLostCallback(device, mockDeviceLostCallback.Callback(),
                                     mockDeviceLostCallback.MakeUserdata(this));
 
-    api.CallDeviceSetDeviceLostCallbackCallback(apiDevice, "some reason");
+    api.CallDeviceSetDeviceLostCallbackCallback(apiDevice, WGPUDeviceLostReason_Undefined,
+                                                "some reason");
 
     // Flush the device lost return command.
-    EXPECT_CALL(mockDeviceLostCallback, Call(StrEq("some reason"), this)).Times(Exactly(1));
+    EXPECT_CALL(mockDeviceLostCallback,
+                Call(WGPUDeviceLostReason_Undefined, StrEq("some reason"), this))
+        .Times(Exactly(1));
     FlushServer();
 
     // Disconnect the client. We shouldn't see the lost callback again.
-    EXPECT_CALL(mockDeviceLostCallback, Call(_, _)).Times(Exactly(0));
+    EXPECT_CALL(mockDeviceLostCallback, Call(_, _, _)).Times(Exactly(0));
     GetWireClient()->Disconnect();
 }
 
@@ -98,13 +102,15 @@ TEST_F(WireDisconnectTests, ServerLostThenDisconnectInCallback) {
     wgpuDeviceSetDeviceLostCallback(device, mockDeviceLostCallback.Callback(),
                                     mockDeviceLostCallback.MakeUserdata(this));
 
-    api.CallDeviceSetDeviceLostCallbackCallback(apiDevice, "lost reason");
+    api.CallDeviceSetDeviceLostCallbackCallback(apiDevice, WGPUDeviceLostReason_Undefined,
+                                                "lost reason");
 
     // Disconnect the client inside the lost callback. We should see the callback
     // only once.
-    EXPECT_CALL(mockDeviceLostCallback, Call(StrEq("lost reason"), this))
+    EXPECT_CALL(mockDeviceLostCallback,
+                Call(WGPUDeviceLostReason_Undefined, StrEq("lost reason"), this))
         .WillOnce(InvokeWithoutArgs([&]() {
-            EXPECT_CALL(mockDeviceLostCallback, Call(_, _)).Times(Exactly(0));
+            EXPECT_CALL(mockDeviceLostCallback, Call(_, _, _)).Times(Exactly(0));
             GetWireClient()->Disconnect();
         }));
     FlushServer();
@@ -117,13 +123,15 @@ TEST_F(WireDisconnectTests, DisconnectThenServerLost) {
                                     mockDeviceLostCallback.MakeUserdata(this));
 
     // Disconnect the client. We should see the callback once.
-    EXPECT_CALL(mockDeviceLostCallback, Call(_, this)).Times(Exactly(1));
+    EXPECT_CALL(mockDeviceLostCallback, Call(WGPUDeviceLostReason_Undefined, _, this))
+        .Times(Exactly(1));
     GetWireClient()->Disconnect();
 
     // Lose the device on the server. The client callback shouldn't be
     // called again.
-    api.CallDeviceSetDeviceLostCallbackCallback(apiDevice, "lost reason");
-    EXPECT_CALL(mockDeviceLostCallback, Call(_, _)).Times(Exactly(0));
+    api.CallDeviceSetDeviceLostCallbackCallback(apiDevice, WGPUDeviceLostReason_Undefined,
+                                                "lost reason");
+    EXPECT_CALL(mockDeviceLostCallback, Call(_, _, _)).Times(Exactly(0));
     FlushServer();
 }
 
diff --git a/src/tests/unittests/wire/WireErrorCallbackTests.cpp b/src/tests/unittests/wire/WireErrorCallbackTests.cpp
index fb4cad3aec..32ba5f56c4 100644
--- a/src/tests/unittests/wire/WireErrorCallbackTests.cpp
+++ b/src/tests/unittests/wire/WireErrorCallbackTests.cpp
@@ -56,12 +56,14 @@ namespace {
 
     class MockDeviceLostCallback {
       public:
-        MOCK_METHOD(void, Call, (const char* message, void* userdata));
+        MOCK_METHOD(void, Call, (WGPUDeviceLostReason reason, const char* message, void* userdata));
     };
 
     std::unique_ptr<StrictMock<MockDeviceLostCallback>> mockDeviceLostCallback;
-    void ToMockDeviceLostCallback(const char* message, void* userdata) {
-        mockDeviceLostCallback->Call(message, userdata);
+    void ToMockDeviceLostCallback(WGPUDeviceLostReason reason,
+                                  const char* message,
+                                  void* userdata) {
+        mockDeviceLostCallback->Call(reason, message, userdata);
     }
 
 }  // anonymous namespace
@@ -319,9 +321,12 @@ TEST_F(WireErrorCallbackTests, DeviceLostCallback) {
 
     // Calling the callback on the server side will result in the callback being called on the
     // client side
-    api.CallDeviceSetDeviceLostCallbackCallback(apiDevice, "Some error message");
+    api.CallDeviceSetDeviceLostCallbackCallback(apiDevice, WGPUDeviceLostReason_Undefined,
+                                                "Some error message");
 
-    EXPECT_CALL(*mockDeviceLostCallback, Call(StrEq("Some error message"), this)).Times(1);
+    EXPECT_CALL(*mockDeviceLostCallback,
+                Call(WGPUDeviceLostReason_Undefined, StrEq("Some error message"), this))
+        .Times(1);
 
     FlushServer();
 }