Send memory management policies to the tile manager

cc/tile_manager.h

Index: cc/tile_manager.h
diff --git a/cc/tile_manager.h b/cc/tile_manager.h
index 857f88908c83617912d553626fc9f4d521fbc35c..e8ad531aa14eeda65c03b2b760ae19fdb0ab66b5 100644
--- a/cc/tile_manager.h
+++ b/cc/tile_manager.h
@@ -27,6 +27,10 @@ class CC_EXPORT TileManagerClient {
  public:
   virtual void ScheduleManageTiles() = 0;
   virtual void ScheduleCheckForCompletedSetPixels() = 0;
+  virtual void SendTileManagerMemoryStats(

[nduca, 2012/12/28 02:16:03]

Lets flip this to GetMemoryStats and just have the caller of ManageTiles check
this. It'll be easier to test.

[ccameron, 2012/12/28 19:56:00]

Done.

+     size_t memoryRequiredBytes,
+     size_t memoryNiceToHaveBytes,
+     size_t memoryUsedBytes) = 0;
 
  protected:
   virtual ~TileManagerClient() {}
@@ -62,6 +66,9 @@ class CC_EXPORT ManagedTileState {
   TileManagerBin bin[NUM_TREES];
   // Bin used to determine raster priority.
   TileManagerBin raster_bin;
+  // 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.
+  TileManagerBin gpu_memmgr_stats_bin;
   TileResolution resolution;
   float time_to_needed_in_seconds;
 };
@@ -118,6 +125,7 @@ class CC_EXPORT TileManager {
       RasterThread*, scoped_refptr<Tile>, skia::LazyPixelRef*);
   void GatherPixelRefsForTile(Tile*);
   RasterThread* GetFreeRasterThread();
+  void SendManagedMemoryStats();
 
   TileManagerClient* client_;
   scoped_ptr<ResourcePool> resource_pool_;