Add multi-planar functions to GpuMemoryBuffer

cc/resources/one_copy_tile_task_worker_pool.cc

Index: cc/resources/one_copy_tile_task_worker_pool.cc
diff --git a/cc/resources/one_copy_tile_task_worker_pool.cc b/cc/resources/one_copy_tile_task_worker_pool.cc
index 1139fbeb507bc2aeb9f91d9f5e4e056c4c32eccf..33830746f861ddd9b7280fac6866753b52b9d642 100644
--- a/cc/resources/one_copy_tile_task_worker_pool.cc
+++ b/cc/resources/one_copy_tile_task_worker_pool.cc
@@ -321,9 +321,13 @@ OneCopyTileTaskWorkerPool::PlaybackAndScheduleCopyOnWorkerThread(
 
     gfx::GpuMemoryBuffer* gpu_memory_buffer = write_lock->GetGpuMemoryBuffer();
     if (gpu_memory_buffer) {
-      TileTaskWorkerPool::PlaybackToMemory(
-          gpu_memory_buffer->Map(), src->format(), src->size(),
-          gpu_memory_buffer->GetStride(), raster_source, rect, scale);
+      void* data = NULL;
+      bool rv = gpu_memory_buffer->Map(&data);
+      DCHECK(rv);
+      uint32 stride;
+      gpu_memory_buffer->GetStride(&stride);
+      TileTaskWorkerPool::PlaybackToMemory(data, src->format(), src->size(),
+                                           stride, raster_source, rect, scale);
       gpu_memory_buffer->Unmap();
     }
   }