Update from chromium https://crrev.com/301725/

cc/resources/zero_copy_raster_worker_pool.cc

Index: cc/resources/zero_copy_raster_worker_pool.cc
diff --git a/cc/resources/zero_copy_raster_worker_pool.cc b/cc/resources/zero_copy_raster_worker_pool.cc
index 10464cd0aecb740c1ffa15c225400c53a02bc170..4030942605e20699e04addc02c6096fae95ae843 100644
--- a/cc/resources/zero_copy_raster_worker_pool.cc
+++ b/cc/resources/zero_copy_raster_worker_pool.cc
@@ -24,11 +24,11 @@ class RasterBufferImpl : public RasterBuffer {
       : lock_(resource_provider, resource->id()), resource_(resource) {}
 
   // Overridden from RasterBuffer:
-  void Playback(const PicturePileImpl* picture_pile,
+  void Playback(const RasterSource* raster_source,
                 const gfx::Rect& rect,
                 float scale,
                 RenderingStatsInstrumentation* stats) override {
-    gfx::GpuMemoryBuffer* gpu_memory_buffer = lock_.gpu_memory_buffer();
+    gfx::GpuMemoryBuffer* gpu_memory_buffer = lock_.GetGpuMemoryBuffer();
     if (!gpu_memory_buffer)
       return;
 
@@ -36,7 +36,7 @@ class RasterBufferImpl : public RasterBuffer {
                                        resource_->format(),
                                        resource_->size(),
                                        gpu_memory_buffer->GetStride(),
-                                       picture_pile,
+                                       raster_source,
                                        rect,
                                        scale,
                                        stats);