Removes device from load/store in caching interface.

- No longer needed since the device information should be stored in the cache key.

Bug: dawn:549
Change-Id: I7c4e31e61df93ba317bc6eeb6a84074585f7eed2
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/88365
Reviewed-by: Austin Eng <enga@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Shrek Shao <shrekshao@google.com>
Commit-Queue: Austin Eng <enga@chromium.org>

include/dawn/platform/DawnPlatform.h

@@ -42,15 +42,10 @@ class DAWN_PLATFORM_EXPORT CachingInterface {
     // size returned. The second mode is used to query for the existence of
     // the |key| where |valueOut| is nullptr and |valueSize| must be 0.
     // The return size is non-zero if the |key| exists.
-    virtual size_t LoadData(const WGPUDevice device,
-                            const void* key,
-                            size_t keySize,
-                            void* valueOut,
-                            size_t valueSize) = 0;
+    virtual size_t LoadData(const void* key, size_t keySize, void* valueOut, size_t valueSize) = 0;
 
     // StoreData puts a |value| in the cache which corresponds to the |key|.
-    virtual void StoreData(const WGPUDevice device,
-                           const void* key,
+    virtual void StoreData(const void* key,
                            size_t keySize,
                            const void* value,
                            size_t valueSize) = 0;

src/dawn/native/BlobCache.cpp

@@ -70,11 +70,11 @@ CachedBlob BlobCache::LoadInternal(const CacheKey& key) {
     if (mCache == nullptr) {
         return result;
     }
-    const size_t expectedSize = mCache->LoadData(nullptr, key.data(), key.size(), nullptr, 0);
+    const size_t expectedSize = mCache->LoadData(key.data(), key.size(), nullptr, 0);
     if (expectedSize > 0) {
         result.Reset(expectedSize);
         const size_t actualSize =
-            mCache->LoadData(nullptr, key.data(), key.size(), result.Data(), expectedSize);
+            mCache->LoadData(key.data(), key.size(), result.Data(), expectedSize);
         ASSERT(expectedSize == actualSize);
     }
     return result;
@@ -86,7 +86,7 @@ void BlobCache::StoreInternal(const CacheKey& key, size_t valueSize, const void*
     if (mCache == nullptr) {
         return;
     }
-    mCache->StoreData(nullptr, key.data(), key.size(), value, valueSize);
+    mCache->StoreData(key.data(), key.size(), value, valueSize);
 }
 
 }  // namespace dawn::native

src/dawn/native/BlobCache.h

@@ -64,10 +64,6 @@ class BlobCache {
 
     // Protects thread safety of access to mCache.
     std::mutex mMutex;
-
-    // TODO(dawn:549): Current CachingInterface declaration requires passing a device to each
-    //   call, but this might be unnecessary. This class just passes nullptr for those calls
-    //   right now. Eventually we can just change the interface to be more generic.
     dawn::platform::CachingInterface* mCache;
 };
 

src/dawn/tests/end2end/mocks/CachingInterfaceMock.cpp

@@ -41,8 +41,7 @@ size_t CachingInterfaceMock::GetNumEntries() const {
     return mCache.size();
 }
 
-size_t CachingInterfaceMock::LoadDataDefault(const WGPUDevice device,
-                                             const void* key,
+size_t CachingInterfaceMock::LoadDataDefault(const void* key,
                                              size_t keySize,
                                              void* value,
                                              size_t valueSize) {
@@ -63,8 +62,7 @@ size_t CachingInterfaceMock::LoadDataDefault(const WGPUDevice device,
     return entry->second.size();
 }
 
-void CachingInterfaceMock::StoreDataDefault(const WGPUDevice device,
-                                            const void* key,
+void CachingInterfaceMock::StoreDataDefault(const void* key,
                                             size_t keySize,
                                             const void* value,
                                             size_t valueSize) {

src/dawn/tests/end2end/mocks/CachingInterfaceMock.h

@@ -47,26 +47,12 @@ class CachingInterfaceMock : public dawn::platform::CachingInterface {
     // Returns the number of entries in the cache.
     size_t GetNumEntries() const;
 
-    MOCK_METHOD(size_t,
-                LoadData,
-                (const WGPUDevice, const void*, size_t, void*, size_t),
-                (override));
-    MOCK_METHOD(void,
-                StoreData,
-                (const WGPUDevice, const void*, size_t, const void*, size_t),
-                (override));
+    MOCK_METHOD(size_t, LoadData, (const void*, size_t, void*, size_t), (override));
+    MOCK_METHOD(void, StoreData, (const void*, size_t, const void*, size_t), (override));
 
   private:
-    size_t LoadDataDefault(const WGPUDevice device,
-                           const void* key,
-                           size_t keySize,
-                           void* value,
-                           size_t valueSize);
-    void StoreDataDefault(const WGPUDevice device,
-                          const void* key,
-                          size_t keySize,
-                          const void* value,
-                          size_t valueSize);
+    size_t LoadDataDefault(const void* key, size_t keySize, void* value, size_t valueSize);
+    void StoreDataDefault(const void* key, size_t keySize, const void* value, size_t valueSize);
 
     bool mEnabled = true;
     size_t mHitCount = 0;