[Reland] Post loading tasks on the appropriate WebFrameScheduler's queue

content/child/blink_platform_impl.cc

Index: content/child/blink_platform_impl.cc
diff --git a/content/child/blink_platform_impl.cc b/content/child/blink_platform_impl.cc
index c8f41688a6fb8017f9075e160af300c0d5673640..db4f2fc45e5d92702df0ad9fad886303ae057d59 100644
--- a/content/child/blink_platform_impl.cc
+++ b/content/child/blink_platform_impl.cc
@@ -34,6 +34,7 @@
 #include "blink/public/resources/grit/blink_image_resources.h"
 #include "blink/public/resources/grit/blink_resources.h"
 #include "components/mime_util/mime_util.h"
+#include "components/scheduler/child/web_task_runner_impl.h"
 #include "components/scheduler/child/webthread_impl_for_worker_scheduler.h"
 #include "content/app/resources/grit/content_resources.h"
 #include "content/app/strings/grit/content_strings.h"
@@ -478,7 +479,7 @@ WebURLLoader* BlinkPlatformImpl::createURLLoader() {
   // data URLs to bypass the ResourceDispatcher.
   return new WebURLLoaderImpl(
       child_thread ? child_thread->resource_dispatcher() : NULL,
-      MainTaskRunnerForCurrentThread());
+      new scheduler::WebTaskRunnerImpl(LoadingTaskRunnerForCurrentThread()));

[Sami, 2015/09/29 11:22:46]

Since LoadingTaskRunnerForCurrentThread is only used here, I wonder if it would
be cleaner to just reimplement createURLLoader in RendererBlinkPlatformImpl.
WDYT?

[alex clarke (OOO till 29th), 2015/09/29 16:37:38]

Done.

 }
 
 blink::WebSocketHandle* BlinkPlatformImpl::createWebSocketHandle() {
@@ -1364,7 +1365,7 @@ uint32_t BlinkPlatformImpl::getUniqueIdForProcess() {
 }
 
 scoped_refptr<base::SingleThreadTaskRunner>
-BlinkPlatformImpl::MainTaskRunnerForCurrentThread() {
+BlinkPlatformImpl::LoadingTaskRunnerForCurrentThread() {

[Sami, 2015/09/29 11:22:46]

I think you could replace all of this with base::ThreadTaskRunnerHandle::Get().

[alex clarke (OOO till 29th), 2015/09/29 16:37:38]

Done.

   if (main_thread_task_runner_.get() &&
       main_thread_task_runner_->BelongsToCurrentThread()) {
     return main_thread_task_runner_;