Revert of Post loading tasks on the appropriate WebFrameScheduler's queue (patchset #17 id:310001 of https://codereview.chromium.org/1366883002/ )

Reason for revert:
BUG=538660

HTTP parsing use-after-free issues.

Original issue's description:
> Post loading tasks on the appropriate WebFrameScheduler's queue.
>
> Must be submitted after https://codereview.chromium.org/1340343003/
>
> BUG=510398
>
> Committed: https://crrev.com/bcc4ce71b07ea71a1056c3227c5bc381c52256fd
> Cr-Commit-Position: refs/heads/master@{#352036}

TBR=jochen@chromium.org,sandersd@chromium.org,skyostil@chromium.org,alexclarke@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=510398

Review URL: https://codereview.chromium.org/1379543003

Cr-Commit-Position: refs/heads/master@{#352062}

1 files changed, 1 insertions, 7 deletions

diff --git a/third_party/WebKit/Source/platform/TimerTest.cpp b/third_party/WebKit/Source/platform/TimerTest.cpp
index 6db91cb..9a0900c 100644
--- a/third_party/WebKit/Source/platform/TimerTest.cpp
+++ b/third_party/WebKit/Source/platform/TimerTest.cpp
@@ -77,7 +77,7 @@ public:
     explicit MockWebTaskRunner(std::priority_queue<DelayedTask>* timerTasks) : m_timerTasks(timerTasks) { }
     ~MockWebTaskRunner() override { }
 
-    void postTask(const WebTraceLocation&, Task* task) override
+    virtual void postTask(const WebTraceLocation&, Task* task)
     {
         m_timerTasks->push(DelayedTask(task, 0));
     }
@@ -87,12 +87,6 @@ public:
         m_timerTasks->push(DelayedTask(task, delayMs * 0.001));
     }
 
-    WebTaskRunner* clone() override
-    {
-        ASSERT_NOT_REACHED();
-        return nullptr;
-    }
-
     std::priority_queue<DelayedTask>* m_timerTasks; // NOT OWNED
 };