cc: Disable impl-side painting in browser compositor.

This is causing asserts in single-thread-proxy. We will want
to enable this independant of the renderer and command-line flag.

BUG=


Review URL: https://chromiumcodereview.appspot.com/11829033

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@175973 0039d316-1c4b-4281-b951-d872f2087c98

content/browser/renderer_host/compositor_impl_android.cc

@@ -172,6 +172,7 @@ void CompositorImpl::SetVisible(bool visible) {
   } else if (!host_.get()) {
     cc::LayerTreeSettings settings;
     settings.refreshRate = 60.0;
+    settings.implSidePainting = false;
 
     // Do not clear the framebuffer when rendering into external GL contexts
     // like Android View System's.