Use per-frame WebTaskRunner onImageBitmapFactories

third_party/WebKit/Source/core/imagebitmap/ImageBitmapFactories.cpp

 /*
  * Copyright (c) 2013, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 15 matching lines @@
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "core/imagebitmap/ImageBitmapFactories.h"
 
 #include "bindings/core/v8/ExceptionState.h"
 #include "core/dom/DOMException.h"
 #include "core/dom/ExecutionContext.h"
+#include "core/dom/TaskRunnerHelper.h"
 #include "core/fileapi/Blob.h"
 #include "core/frame/ImageBitmap.h"
 #include "core/frame/LocalDOMWindow.h"
 #include "core/frame/UseCounter.h"
 #include "core/html/HTMLCanvasElement.h"
 #include "core/html/HTMLImageElement.h"
 #include "core/html/HTMLVideoElement.h"
 #include "core/html/ImageData.h"
 #include "core/imagebitmap/ImageBitmapOptions.h"
 #include "core/svg/graphics/SVGImage.h"
@@ skipping 205 matching lines @@
     DOMArrayBuffer* arrayBuffer) {
   // For a 4000*4000 png image where each 10*10 tile is filled in by a random RGBA value,
   // the byteLength is around 2M, and it typically takes around 4.5ms to decode on a
   // current model of Linux desktop.
   const int longTaskByteLengthThreshold = 2000000;
   BackgroundTaskRunner::TaskSize taskSize =
       BackgroundTaskRunner::TaskSizeShortRunningTask;
   if (arrayBuffer->byteLength() >= longTaskByteLengthThreshold)
     taskSize = BackgroundTaskRunner::TaskSizeLongRunningTask;
   WebTaskRunner* taskRunner =
-      Platform::current()->currentThread()->getWebTaskRunner();
+      TaskRunnerHelper::get(TaskType::Networking, m_resolver->getScriptState());
   BackgroundTaskRunner::postOnBackgroundThread(
       BLINK_FROM_HERE,
       crossThreadBind(
           &ImageBitmapFactories::ImageBitmapLoader::decodeImageOnDecoderThread,
-          wrapCrossThreadPersistent(this), crossThreadUnretained(taskRunner),
+          wrapCrossThreadPersistent(this), WTF::passed(taskRunner->clone()),
           wrapCrossThreadPersistent(arrayBuffer), m_options.premultiplyAlpha(),
           m_options.colorSpaceConversion()),
       taskSize);
 }
 
 void ImageBitmapFactories::ImageBitmapLoader::decodeImageOnDecoderThread(
-    WebTaskRunner* taskRunner,
+    std::unique_ptr<WebTaskRunner> taskRunner,
     DOMArrayBuffer* arrayBuffer,
     const String& premultiplyAlphaOption,
     const String& colorSpaceConversionOption) {
   ASSERT(!isMainThread());
 
   ImageDecoder::AlphaOption alphaOp = ImageDecoder::AlphaPremultiplied;
   if (premultiplyAlphaOption == "none")
     alphaOp = ImageDecoder::AlphaNotPremultiplied;
   ImageDecoder::GammaAndColorProfileOption colorSpaceOp =
       ImageDecoder::GammaAndColorProfileApplied;
@@ skipping 33 matching lines @@
   }
   m_factory->didFinishLoading(this);
 }
 
 DEFINE_TRACE(ImageBitmapFactories::ImageBitmapLoader) {
   visitor->trace(m_factory);
   visitor->trace(m_resolver);
 }
 
 }  // namespace blink