cc: Parameterize the main thread task runner

android_webview/browser/hardware_renderer.cc

Index: android_webview/browser/hardware_renderer.cc
diff --git a/android_webview/browser/hardware_renderer.cc b/android_webview/browser/hardware_renderer.cc
index 4ed2859b1399038a5dd060058b0bfcd450158404..7b4bf8c12e1eabc29abbfbe2462dcd361b8fa92a 100644
--- a/android_webview/browser/hardware_renderer.cc
+++ b/android_webview/browser/hardware_renderer.cc
@@ -91,8 +91,8 @@ HardwareRenderer::HardwareRenderer(SharedRendererState* state)
   // Webview does not own the surface so should not clear it.
   settings.should_clear_root_render_pass = false;
 
-  layer_tree_host_ =
-      cc::LayerTreeHost::CreateSingleThreaded(this, this, NULL, settings);
+  layer_tree_host_ = cc::LayerTreeHost::CreateSingleThreaded(
+      this, this, NULL, settings, base::MessageLoopProxy::current());
   layer_tree_host_->SetRootLayer(root_layer_);
   layer_tree_host_->SetLayerTreeHostClientReady();
   layer_tree_host_->set_has_transparent_background(true);