Fix initial value setting for ImageRendering for OffscreenCanvas on a worker

Bug: 645994

Change-Id: Iadc2c787270edfebb449c3a0e221ac7d33c4f713
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1865771
Commit-Queue: Yi Xu <yiyix@chromium.org>
Reviewed-by: Fernando Serboncini <fserb@chromium.org>
Reviewed-by: Jeremy Roman <jbroman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#707182}

third_party/blink/renderer/bindings/core/v8/serialization/serialization_tag.h

@@ -64,7 +64,8 @@ enum SerializationTag {
                           // -> ImageBitmap (ref)
   kImageBitmapTransferTag =
       'G',  // index:uint32_t -> ImageBitmap. For ImageBitmap transfer
-  kOffscreenCanvasTransferTag = 'H',  // index, width, height, id:uint32_t ->
+  kOffscreenCanvasTransferTag = 'H',  // index, width, height, id,
+                                      // filter_quality::uint32_t ->
                                       // OffscreenCanvas. For OffscreenCanvas
                                       // transfer
   kReadableStreamTransferTag = 'r',   // index:uint32_t

third_party/blink/renderer/bindings/core/v8/serialization/v8_script_value_deserializer.cc

@@ -33,6 +33,7 @@
 #include "third_party/blink/renderer/core/typed_arrays/dom_shared_array_buffer.h"
 #include "third_party/blink/renderer/platform/runtime_enabled_features.h"
 #include "third_party/blink/renderer/platform/wtf/date_math.h"
+#include "third_party/skia/include/core/SkFilterQuality.h"
 
 namespace blink {
 
@@ -509,15 +510,20 @@ ScriptWrappable* V8ScriptValueDeserializer::ReadDOMObject(
           std::move(serialized_script_value_->MojoHandles()[index]));
     }
     case kOffscreenCanvasTransferTag: {
-      uint32_t width = 0, height = 0, canvas_id = 0, client_id = 0, sink_id = 0;
+      uint32_t width = 0, height = 0, canvas_id = 0, client_id = 0, sink_id = 0,
+               filter_quality = 0;
       if (!ReadUint32(&width) || !ReadUint32(&height) ||
           !ReadUint32(&canvas_id) || !ReadUint32(&client_id) ||
-          !ReadUint32(&sink_id))
+          !ReadUint32(&sink_id) || !ReadUint32(&filter_quality))
         return nullptr;
       OffscreenCanvas* canvas = OffscreenCanvas::Create(
           ExecutionContext::From(GetScriptState()), width, height);
       canvas->SetPlaceholderCanvasId(canvas_id);
       canvas->SetFrameSinkId(client_id, sink_id);
+      if (filter_quality == 0)
+        canvas->SetFilterQuality(kNone_SkFilterQuality);
+      else
+        canvas->SetFilterQuality(kLow_SkFilterQuality);
       return canvas;
     }
     case kReadableStreamTransferTag: {

third_party/blink/renderer/bindings/core/v8/serialization/v8_script_value_serializer.cc

@@ -513,6 +513,7 @@ bool V8ScriptValueSerializer::WriteDOMObject(ScriptWrappable* wrappable,
     WriteUint64(canvas->PlaceholderCanvasId());
     WriteUint32(canvas->ClientId());
     WriteUint32(canvas->SinkId());
+    WriteUint32(canvas->FilterQuality() == kNone_SkFilterQuality ? 0 : 1);
     return true;
   }
   if (wrapper_type_info == V8ReadableStream::GetWrapperTypeInfo() &&