Remove WebCallbackTask

third_party/WebKit/public/platform/WebTaskRunner.h

Index: third_party/WebKit/public/platform/WebTaskRunner.h
diff --git a/third_party/WebKit/public/platform/WebTaskRunner.h b/third_party/WebKit/public/platform/WebTaskRunner.h
index fa2705bc49e088362cb6c46bc38348368cf6ccf8..697cae1c42c8eac92c318e5d140dc2a67710d50d 100644
--- a/third_party/WebKit/public/platform/WebTaskRunner.h
+++ b/third_party/WebKit/public/platform/WebTaskRunner.h
@@ -40,6 +40,10 @@ public:
     // Takes ownership of |Task|. Can be called from any thread.
     virtual void postDelayedTask(const WebTraceLocation&, Task*, double delayMs) = 0;
 
+    // Schedule a task to be run on the the associated WebThread.
+    // Can be called from any thread.
+    virtual void postTask(const WebTraceLocation&, const base::Closure&) = 0;

[alex clarke (OOO till 29th), 2016/09/21 10:38:40]

Getting rid of WebCallbackTask is a good idea, but do we really need this?  We
already have toSingleThreadTaskRunner().

[tzik, 2016/09/21 14:32:08]

Ah, right. Updated. We can use SingleThreadTaskRunner there.

+
     // Schedule a task to be run after |delayMs| on the the associated WebThread.
     // Can be called from any thread.
     virtual void postDelayedTask(const WebTraceLocation&, const base::Closure&, double delayMs) = 0;