Switch canvas.toBlob from idle-periods implementation to threaded implementation to allow experimen…

third_party/WebKit/Source/core/html/HTMLCanvasElement.cpp

Index: third_party/WebKit/Source/core/html/HTMLCanvasElement.cpp
diff --git a/third_party/WebKit/Source/core/html/HTMLCanvasElement.cpp b/third_party/WebKit/Source/core/html/HTMLCanvasElement.cpp
index e04ea2b304f96f0bc3e3c80e013ff43918bbac47..831ee6b5e46663aced2ac952526881cfb5042a0f 100644
--- a/third_party/WebKit/Source/core/html/HTMLCanvasElement.cpp
+++ b/third_party/WebKit/Source/core/html/HTMLCanvasElement.cpp
@@ -561,11 +561,13 @@ void HTMLCanvasElement::toBlob(FileCallback* callback, const String& mimeType, c
     RefPtr<DOMUint8ClampedArray> imageDataRef(imageData->data());
 
     RefPtr<CanvasAsyncBlobCreator> asyncCreatorRef = CanvasAsyncBlobCreator::create(imageDataRef.release(), encodingMimeType, imageData->size(), callback);
-    if (Platform::current()->isThreadedCompositingEnabled() && (encodingMimeType == DefaultMimeType)) {
-        asyncCreatorRef->scheduleAsyncBlobCreation(true);
-    } else {
-        asyncCreatorRef->scheduleAsyncBlobCreation(false, quality);
-    }
+
+// TODO(xlai): After Intent-to-Ship is approved, remove idle-periods version of implementation completely

[Justin Novosad, 2015/12/01 19:38:02]

Create a crbug about this so we don't forget.

+// if (Platform::current()->isThreadedCompositingEnabled() && (encodingMimeType == DefaultMimeType)) {
+    // asyncCreatorRef->scheduleAsyncBlobCreation(true);
+// } else {

[Justin Novosad, 2015/12/01 19:38:02]

Don't commit commented-out code

+    asyncCreatorRef->scheduleAsyncBlobCreation(false, quality);
+// }
 }
 
 SecurityOrigin* HTMLCanvasElement::securityOrigin() const