API evolution GPUExtent3D.depth -> depthOrArrayLayers (Step 2)

Still leave deprecated `depth` functional as there are some references in
other clients. Using `depth` and `depthOrArrayLayers` at the same time is
invalid. Add DeprecatedAPITests.

Bug: chromium:1176969
Change-Id: Ia06645e4f3c17588323dd36b11f9f3988b2e3aba
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/44640
Commit-Queue: Shrek Shao <shrekshao@google.com>
Reviewed-by: Austin Eng <enga@chromium.org>

src/utils/TestUtils.cpp

@@ -40,7 +40,8 @@ namespace utils {
         TextureDataCopyLayout layout;
 
         layout.mipSize = {textureSizeAtLevel0.width >> mipmapLevel,
-                          textureSizeAtLevel0.height >> mipmapLevel, textureSizeAtLevel0.depth};
+                          textureSizeAtLevel0.height >> mipmapLevel,
+                          textureSizeAtLevel0.depthOrArrayLayers};
 
         layout.bytesPerRow = GetMinimumBytesPerRow(format, layout.mipSize.width);
 
@@ -83,7 +84,7 @@ namespace utils {
         ASSERT(copyExtent.height % blockHeight == 0);
         uint32_t heightInBlocks = copyExtent.height / blockHeight;
         return RequiredBytesInCopy(bytesPerRow, rowsPerImage, widthInBlocks, heightInBlocks,
-                                   copyExtent.depth, blockSize);
+                                   copyExtent.depthOrArrayLayers, blockSize);
     }
 
     uint64_t RequiredBytesInCopy(uint64_t bytesPerRow,

src/utils/WGPUHelpers.cpp

@@ -258,7 +258,7 @@ namespace utils {
         descriptor.dimension = wgpu::TextureDimension::e2D;
         descriptor.size.width = width;
         descriptor.size.height = height;
-        descriptor.size.depth = 1;
+        descriptor.size.depthOrArrayLayers = 1;
         descriptor.sampleCount = 1;
         descriptor.format = BasicRenderPass::kDefaultColorFormat;
         descriptor.mipLevelCount = 1;