cc: Rename TileTaskClient interface to RasterBufferProvider.

cc/tiles/tile_manager.cc

Index: cc/tiles/tile_manager.cc
diff --git a/cc/tiles/tile_manager.cc b/cc/tiles/tile_manager.cc
index cabc5d286c20ec10a333c4f46b3f2e635f149822..cec859ff6299cec34f0213c2af97cb21ef744994 100644
--- a/cc/tiles/tile_manager.cc
+++ b/cc/tiles/tile_manager.cc
@@ -98,13 +98,13 @@ class RasterTaskImpl : public RasterTask {
   }
 
   // Overridden from TileTask:
-  void ScheduleOnOriginThread(TileTaskClient* client) override {
+  void ScheduleOnOriginThread(RasterBufferProvider* provider) override {
     DCHECK(!raster_buffer_);
-    raster_buffer_ = client->AcquireBufferForRaster(
+    raster_buffer_ = provider->AcquireBufferForRaster(
         resource_, resource_content_id_, previous_content_id_);
   }
-  void CompleteOnOriginThread(TileTaskClient* client) override {
-    client->ReleaseBufferForRaster(std::move(raster_buffer_));
+  void CompleteOnOriginThread(RasterBufferProvider* provider) override {
+    provider->ReleaseBufferForRaster(std::move(raster_buffer_));
     reply_.Run(!HasFinishedRunning());
   }
 
@@ -252,8 +252,8 @@ class TaskSetFinishedTaskImpl : public TileTask {
   }
 
   // Overridden from TileTask:
-  void ScheduleOnOriginThread(TileTaskClient* client) override {}
-  void CompleteOnOriginThread(TileTaskClient* client) override {}
+  void ScheduleOnOriginThread(RasterBufferProvider* provider) override {}
+  void CompleteOnOriginThread(RasterBufferProvider* provider) override {}
 
  protected:
   ~TaskSetFinishedTaskImpl() override {}