cc: Removed low priority bin from tile management.

cc/resources/managed_tile_state.h

 // Copyright 2013 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_RESOURCES_MANAGED_TILE_STATE_H_
 #define CC_RESOURCES_MANAGED_TILE_STATE_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "cc/resources/platform_color.h"
 #include "cc/resources/raster_worker_pool.h"
 #include "cc/resources/resource_pool.h"
 #include "cc/resources/resource_provider.h"
 
 namespace cc {
 
 class TileManager;
 
 // Tile manager classifying tiles into a few basic bins:
 enum ManagedTileBin {
   NOW_AND_READY_TO_DRAW_BIN = 0,  // Ready to draw and within viewport.
   NOW_BIN = 1,                    // Needed ASAP.
   SOON_BIN = 2,                   // Impl-side version of prepainting.
   EVENTUALLY_AND_ACTIVE_BIN = 3,  // Nice to have, and has a task or resource.
   EVENTUALLY_BIN = 4,             // Nice to have, if we've got memory and time.
-  NEVER_AND_ACTIVE_BIN = 5,       // Dont bother, but has a task or resource.
-  NEVER_BIN = 6,                  // Dont bother.
-  NUM_BINS = 7
+  AT_LAST_AND_ACTIVE_BIN = 5,     // Only do this after all other bins.
+  AT_LAST_BIN = 6,                // Only do this after all other bins.
+  NEVER_BIN = 7,                  // Dont bother.
+  NUM_BINS = 8
   // NOTE: Be sure to update ManagedTileBinAsValue and kBinPolicyMap when adding
   // or reordering fields.
 };
 scoped_ptr<base::Value> ManagedTileBinAsValue(
     ManagedTileBin bin);
 
 enum ManagedTileBinPriority {
   HIGH_PRIORITY_BIN = 0,
   LOW_PRIORITY_BIN = 1,
   NUM_BIN_PRIORITIES = 2
@@ skipping 87 matching lines @@
 
   ManagedTileState();
   ~ManagedTileState();
 
   scoped_ptr<base::Value> AsValue() const;
 
   // Persisted state: valid all the time.
   TileVersion tile_versions[NUM_RASTER_MODES];
   RasterMode raster_mode;
 
-  // Ephemeral state, valid only during TileManager::ManageTiles.
-  bool is_in_never_bin_on_both_trees() const {
-    return (bin[HIGH_PRIORITY_BIN] == NEVER_BIN ||
-            bin[HIGH_PRIORITY_BIN] == NEVER_AND_ACTIVE_BIN) &&
-           (bin[LOW_PRIORITY_BIN] == NEVER_BIN ||
-            bin[LOW_PRIORITY_BIN] == NEVER_AND_ACTIVE_BIN);
-  }
-
-  ManagedTileBin bin[NUM_BIN_PRIORITIES];
+  ManagedTileBin bin;
   ManagedTileBin tree_bin[NUM_TREES];
 
   // The bin that the tile would have if the GPU memory manager had
   // a maximally permissive policy, send to the GPU memory manager
   // to determine policy.
   ManagedTileBin gpu_memmgr_stats_bin;
   TileResolution resolution;
   bool required_for_activation;
   float time_to_needed_in_seconds;
   float distance_to_visible_in_pixels;
   bool visible_and_ready_to_draw;
 
   // Priority for this state from the last time we assigned memory.
   unsigned scheduled_priority;
 };
 
 }  // namespace cc
 
 #endif  // CC_RESOURCES_MANAGED_TILE_STATE_H_