[Android] Implement asynchronous zero-copy bitmap capture API.

content/test/test_render_view_host.cc

Index: content/test/test_render_view_host.cc
diff --git a/content/test/test_render_view_host.cc b/content/test/test_render_view_host.cc
index 4de28b0d2a9b9f2282bee0af0b218fb7bc207b7e..65b7c443abdeffc30fcd2ffa857fee8e16825fdd 100644
--- a/content/test/test_render_view_host.cc
+++ b/content/test/test_render_view_host.cc
@@ -109,7 +109,8 @@ void TestRenderWidgetHostView::CopyFromCompositingSurface(
     const gfx::Rect& src_subrect,
     const gfx::Size& dst_size,
     const base::Callback<void(bool, const SkBitmap&)>& callback,
-    const SkBitmap::Config config) {
+    const SkBitmap::Config config,
+    scoped_ptr<SkBitmap> bitmap) {
   callback.Run(false, SkBitmap());
 }