cc: Remove low quality mode and cleanup tile versions.

cc/debug/frame_viewer_instrumentation.h

 // 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.
 
 #ifndef CC_DEBUG_FRAME_VIEWER_INSTRUMENTATION_H_
 #define CC_DEBUG_FRAME_VIEWER_INSTRUMENTATION_H_
 
 #include "base/debug/trace_event.h"
 #include "cc/resources/tile.h"
 
 namespace cc {
 namespace frame_viewer_instrumentation {
 namespace internal {
 
 const char kCategory[] = "cc";
 const char kTileData[] = "tileData";
 const char kLayerId[] = "layerId";
 const char kTileId[] = "tileId";
 const char kTileResolution[] = "tileResolution";
 const char kSourceFrameNumber[] = "sourceFrameNumber";
-const char kRasterMode[] = "rasterMode";
 
 const char kAnalyzeTask[] = "AnalyzeTask";
 const char kRasterTask[] = "RasterTask";
 
 scoped_refptr<base::debug::ConvertableToTraceFormat> TileDataAsValue(
     const void* tile_id,
     TileResolution tile_resolution,
     int source_frame_number,
     int layer_id) {
   scoped_refptr<base::debug::TracedValue> res(new base::debug::TracedValue());
@@ skipping 26 matching lines @@
 
  private:
   DISALLOW_COPY_AND_ASSIGN(ScopedAnalyzeTask);
 };
 
 class ScopedRasterTask {
  public:
   ScopedRasterTask(const void* tile_id,
                    TileResolution tile_resolution,
                    int source_frame_number,
-                   int layer_id,
-                   RasterMode raster_mode) {
-    TRACE_EVENT_BEGIN2(
+                   int layer_id) {
+    TRACE_EVENT_BEGIN1(
         internal::kCategory,
         internal::kRasterTask,
         internal::kTileData,
         internal::TileDataAsValue(
-            tile_id, tile_resolution, source_frame_number, layer_id),
-        internal::kRasterMode,
-        RasterModeToString(raster_mode));
+            tile_id, tile_resolution, source_frame_number, layer_id));
   }
   ~ScopedRasterTask() {
     TRACE_EVENT_END0(internal::kCategory, internal::kRasterTask);
   }
 
  private:
   DISALLOW_COPY_AND_ASSIGN(ScopedRasterTask);
 };
 
 }  // namespace frame_viewer_instrumentation
 }  // namespace cc
 
 #endif  // CC_DEBUG_FRAME_VIEWER_INSTRUMENTATION_H_