Revert of Per WebViewScheduler virtual time

third_party/WebKit/Source/platform/graphics/RecordingImageBufferSurfaceTest.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "platform/graphics/RecordingImageBufferSurface.h"
 
 #include "platform/graphics/GraphicsContext.h"
 #include "platform/graphics/ImageBuffer.h"
 #include "platform/graphics/ImageBufferClient.h"
 #include "platform/graphics/UnacceleratedImageBufferSurface.h"
@@ skipping 245 matching lines @@
         }
 
         void postDelayedTask(const WebTraceLocation&, Task*, double delayMs) override { ASSERT_NOT_REACHED(); };
 
         WebTaskRunner* clone() override
         {
             ASSERT_NOT_REACHED();
             return nullptr;
         }
 
-        double virtualTimeSeconds() const override
-        {
-            ASSERT_NOT_REACHED();
-            return 0.0;
-        }
-
-        double monotonicallyIncreasingVirtualTimeSeconds() const override
-        {
-            ASSERT_NOT_REACHED();
-            return 0.0;
-        }
-
         Task* m_task;
     };
 
     class CurrentThreadMock : public WebThread {
     public:
         CurrentThreadMock() : m_taskObserver(0) { }
 
         ~CurrentThreadMock() override
         {
             EXPECT_EQ((WebTaskRunner::Task*)0, m_taskRunner.m_task);
@@ skipping 111 matching lines @@
 }
 
 DEFINE_TEST_TASK_WRAPPER_CLASS(testClearRect)
 TEST_F(RecordingImageBufferSurfaceTest, testClearRect)
 {
     CALL_TEST_TASK_WRAPPER(testClearRect);
     expectDisplayListEnabled(true);
 }
 
 } // namespace blink