Implement touch events for site-isolation.

content/browser/frame_host/cross_process_frame_connector.cc

Index: content/browser/frame_host/cross_process_frame_connector.cc
diff --git a/content/browser/frame_host/cross_process_frame_connector.cc b/content/browser/frame_host/cross_process_frame_connector.cc
index d945a2ff74be682834bd061810b962212b1d0f5f..2cccdc3510398b7fbf114d4ce1afb17259007cad 100644
--- a/content/browser/frame_host/cross_process_frame_connector.cc
+++ b/content/browser/frame_host/cross_process_frame_connector.cc
@@ -149,6 +149,13 @@ gfx::Point CrossProcessFrameConnector::TransformPointToRootCoordSpace(
   return transformed_point;
 }
 
+void CrossProcessFrameConnector::ForwardProcessAckedTouchEvent(
+    const TouchEventWithLatencyInfo& touch,
+    InputEventAckState ack_result) {
+  if (auto main_view = GetRootRenderWidgetHostView())

[nasko, 2016/02/29 22:10:26]

nit: Variable declaration should be outside the if statement.

[wjmaclean, 2016/02/29 23:33:55]

Done.

+    main_view->ProcessAckedTouchEvent(touch, ack_result);
+}
+
 bool CrossProcessFrameConnector::HasFocus() {
   RenderWidgetHostViewBase* root_view = GetRootRenderWidgetHostView();
   if (root_view)
@@ -156,6 +163,12 @@ bool CrossProcessFrameConnector::HasFocus() {
   return false;
 }
 
+void CrossProcessFrameConnector::Focus() {

[nasko, 2016/02/29 22:10:26]

Should this be named FocusRoot? Or something similar? Or maybe add a comment
explaining the behavior.

[wjmaclean, 2016/02/29 23:33:55]

Done.

+  RenderWidgetHostViewBase* root_view = GetRootRenderWidgetHostView();
+  if (root_view)
+    root_view->Focus();
+}
+
 void CrossProcessFrameConnector::OnForwardInputEvent(
     const blink::WebInputEvent* event) {
   if (!view_)
@@ -168,6 +181,10 @@ void CrossProcessFrameConnector::OnForwardInputEvent(
           ? manager->GetOuterRenderWidgetHostForKeyboardInput()
           : frame_proxy_in_parent_renderer_->GetRenderViewHost()->GetWidget();
 
+  // TODO(wjmaclean): We should remove these forwarding functions, since they
+  // are directly target using RenderWidgetHostInputEventRouter. But neither
+  // pathway is currently handling gesture events, so that needs to be fixed
+  // in a subsequent CL.
   if (blink::WebInputEvent::isKeyboardEventType(event->type)) {
     if (!parent_widget->GetLastKeyboardEvent())
       return;