Revert of Remove --enable-per-tile-painting and --ui-enable-per-tile-painting.

content/browser/renderer_host/render_process_host_impl.cc

 // Copyright (c) 2012 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.
 
 // Represents the browser side of the browser <--> renderer communication
 // channel. There will be one RenderProcessHost per renderer process.
 
 #include "content/browser/renderer_host/render_process_host_impl.h"
 
 #include <algorithm>
@@ skipping 1095 matching lines @@
     cc::switches::kDisableImplSidePainting,
     cc::switches::kDisableLCDText,
     cc::switches::kDisableMapImage,
     cc::switches::kDisableThreadedAnimation,
     cc::switches::kEnableGpuBenchmarking,
     cc::switches::kEnableGPURasterization,
     cc::switches::kEnableImplSidePainting,
     cc::switches::kEnableLCDText,
     cc::switches::kEnableMapImage,
     cc::switches::kEnablePartialSwap,
+    cc::switches::kEnablePerTilePainting,
     cc::switches::kEnablePinchVirtualViewport,
     cc::switches::kEnableTopControlsPositionCalculation,
     cc::switches::kMaxTilesForInterestArea,
     cc::switches::kMaxUnusedResourceMemoryUsagePercentage,
     cc::switches::kShowCompositedLayerBorders,
     cc::switches::kShowFPSCounter,
     cc::switches::kShowLayerAnimationBounds,
     cc::switches::kShowNonOccludingRects,
     cc::switches::kShowOccludingRects,
     cc::switches::kShowPropertyChangedRects,
@@ skipping 946 matching lines @@
     return;
   Send(new MediaStreamMsg_EnableAecDump(file_for_transit));
 }
 
 void RenderProcessHostImpl::SendDisableAecDumpToRenderer() {
   Send(new MediaStreamMsg_DisableAecDump());
 }
 #endif
 
 }  // namespace content