cc: Remove low quality mode and cleanup tile versions.

cc/resources/tile.cc

 // Copyright 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.
 
 #include "cc/resources/tile.h"
 
 #include <algorithm>
 
 #include "base/debug/trace_event_argument.h"
 #include "cc/base/math_util.h"
@@ skipping 73 matching lines @@
   res->BeginDictionary("managed_state");
   managed_state_.AsValueInto(res);
   res->EndDictionary();
 
   res->SetBoolean("use_picture_analysis", use_picture_analysis());
 
   res->SetInteger("gpu_memory_usage", GPUMemoryUsageInBytes());
 }
 
 size_t Tile::GPUMemoryUsageInBytes() const {
-  size_t total_size = 0;
-  for (int mode = 0; mode < NUM_RASTER_MODES; ++mode)
-    total_size += managed_state_.tile_versions[mode].GPUMemoryUsageInBytes();
-  return total_size;
-}
-
-RasterMode Tile::DetermineRasterModeForTree(WhichTree tree) const {
-  return DetermineRasterModeForResolution(priority(tree).resolution);
-}
-
-RasterMode Tile::DetermineOverallRasterMode() const {
-  return DetermineRasterModeForResolution(managed_state_.resolution);
-}
-
-RasterMode Tile::DetermineRasterModeForResolution(
-    TileResolution resolution) const {
-  RasterMode current_mode = managed_state_.raster_mode;
-  RasterMode raster_mode = resolution == LOW_RESOLUTION
-                               ? LOW_QUALITY_RASTER_MODE
-                               : HIGH_QUALITY_RASTER_MODE;
-  return std::min(raster_mode, current_mode);
+  return managed_state_.draw_info_.GPUMemoryUsageInBytes();
 }
 
 bool Tile::HasRasterTask() const {
-  for (int mode = 0; mode < NUM_RASTER_MODES; ++mode) {
-    if (managed_state_.tile_versions[mode].raster_task_.get())
-      return true;
-  }
-  return false;
+  return !!managed_state_.draw_info_.raster_task_.get();
 }
 
 }  // namespace cc