Remove the clip parameter from ContentLayerClient.

cc/test/solid_color_content_layer_client.cc

Index: cc/test/solid_color_content_layer_client.cc
diff --git a/cc/test/solid_color_content_layer_client.cc b/cc/test/solid_color_content_layer_client.cc
index bd6e3b7fe69635d4536b2deaab37f01bc8981622..c3518c35482a68a9d080384cc1522a77f24698f7 100644
--- a/cc/test/solid_color_content_layer_client.cc
+++ b/cc/test/solid_color_content_layer_client.cc
@@ -21,9 +21,9 @@ gfx::Rect SolidColorContentLayerClient::PaintableRegion() {
 
 scoped_refptr<DisplayItemList>
 SolidColorContentLayerClient::PaintContentsToDisplayList(
-    const gfx::Rect& clip,
     PaintingControlSetting painting_control) {
   SkPictureRecorder recorder;
+  gfx::Rect clip(PaintableRegion());
   skia::RefPtr<SkCanvas> canvas =
       skia::SharePtr(recorder.beginRecording(gfx::RectToSkRect(clip)));