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..80fa99416a46fd408d2ce03ce3e6e4e4376c8a49 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())
+    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() {
+  RenderWidgetHostViewBase* root_view = GetRootRenderWidgetHostView();
+  if (root_view)
+    root_view->Focus();
+}
+
 void CrossProcessFrameConnector::OnForwardInputEvent(
     const blink::WebInputEvent* event) {
   if (!view_)
@@ -168,6 +181,11 @@ void CrossProcessFrameConnector::OnForwardInputEvent(
           ? manager->GetOuterRenderWidgetHostForKeyboardInput()
           : frame_proxy_in_parent_renderer_->GetRenderViewHost()->GetWidget();
 
+  // TODO(wjmaclean): Keyboard events will likely live here for a while, since
+  // they rely on focus and not on event coordinates, but we should get rid of
+  // the others since they are directly target using
+  // RenderWidgetHostInputEventRouter. But neither pathway is currently handling
+  // gesture events :-(

[kenrb, 2016/02/25 00:58:04]

We don't need this to handle keyboard events, either. See
RenderWidgetHostViewAura::ForwardKeyboardEvent.

[wjmaclean, 2016/02/25 12:23:02]

Done.

   if (blink::WebInputEvent::isKeyboardEventType(event->type)) {
     if (!parent_widget->GetLastKeyboardEvent())
       return;
@@ -177,6 +195,12 @@ void CrossProcessFrameConnector::OnForwardInputEvent(
     return;
   }
 
+  if (blink::WebInputEvent::isTouchEventType(event->type)) {
+    view_->ProcessTouchEvent(*static_cast<const blink::WebTouchEvent*>(event),

[kenrb, 2016/02/25 00:58:04]

Is this needed? I think the entire method (OnForwardInputEvent) should be able
to go away soon, unless I am missing something.

[wjmaclean, 2016/02/25 12:23:02]

I added this mostly for completeness, but I'm willing to leave this out on an
experimental basis until this entire method goes away.

Done.

+                             ui::LatencyInfo());
+    return;
+  }
+
   if (blink::WebInputEvent::isMouseEventType(event->type)) {
     view_->ProcessMouseEvent(*static_cast<const blink::WebMouseEvent*>(event));
     return;