cc: Rename TileTaskClient interface to RasterBufferProvider.

cc/raster/tile_task_worker_pool_unittest.cc

Index: cc/raster/tile_task_worker_pool_unittest.cc
diff --git a/cc/raster/tile_task_worker_pool_unittest.cc b/cc/raster/tile_task_worker_pool_unittest.cc
index 919a88577175eea8e01652d1311733d5090b0471..e3d2ab5d06eb01bd3b349429bd53a4fcbb529244 100644
--- a/cc/raster/tile_task_worker_pool_unittest.cc
+++ b/cc/raster/tile_task_worker_pool_unittest.cc
@@ -22,7 +22,6 @@
 #include "cc/raster/gpu_rasterizer.h"
 #include "cc/raster/gpu_tile_task_worker_pool.h"
 #include "cc/raster/one_copy_tile_task_worker_pool.h"
-#include "cc/raster/raster_buffer.h"
 #include "cc/raster/synchronous_task_graph_runner.h"
 #include "cc/raster/tile_task_runner.h"
 #include "cc/raster/zero_copy_tile_task_worker_pool.h"
@@ -73,13 +72,13 @@ class TestRasterTaskImpl : public RasterTask {
   }
 
   // Overridden from TileTask:
-  void ScheduleOnOriginThread(TileTaskClient* client) override {
+  void ScheduleOnOriginThread(RasterBufferProvider* provider) override {
     // The raster buffer has no tile ids associated with it for partial update,
     // so doesn't need to provide a valid dirty rect.
-    raster_buffer_ = client->AcquireBufferForRaster(resource_, 0, 0);
+    raster_buffer_ = provider->AcquireBufferForRaster(resource_, 0, 0);
   }
-  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());
   }