Implement touch events for site-isolation.

content/browser/frame_host/cross_process_frame_connector.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/frame_host/cross_process_frame_connector.h"
 
 #include "cc/surfaces/surface.h"
 #include "cc/surfaces/surface_manager.h"
 #include "content/browser/compositor/surface_utils.h"
 #include "content/browser/frame_host/frame_tree.h"
@@ skipping 131 matching lines @@
     const gfx::Point& point,
     cc::SurfaceId surface_id) {
   gfx::Point transformed_point = point;
   RenderWidgetHostViewBase* root_view = GetRootRenderWidgetHostView();
   if (root_view)
     root_view->TransformPointToLocalCoordSpace(point, surface_id,
                                                &transformed_point);
   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)
     return root_view->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_)
     return;
 
   RenderFrameHostManager* manager =
       frame_proxy_in_parent_renderer_->frame_tree_node()->render_manager();
   RenderWidgetHostImpl* parent_widget =
       manager->ForInnerDelegate()
           ? 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;
     NativeWebKeyboardEvent keyboard_event(
         *parent_widget->GetLastKeyboardEvent());
     view_->ProcessKeyboardEvent(keyboard_event);
     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;
   }
 
   if (event->type == blink::WebInputEvent::MouseWheel) {
     view_->ProcessMouseWheelEvent(
         *static_cast<const blink::WebMouseWheelEvent*>(event));
     return;
   }
@@ skipping 53 matching lines @@
   // in the case of nested WebContents.
   while (top_host->frame_tree_node()->render_manager()->ForInnerDelegate()) {
     top_host = top_host->frame_tree_node()->render_manager()->
         GetOuterDelegateNode()->frame_tree()->root()->current_frame_host();
   }
 
   return static_cast<RenderWidgetHostViewBase*>(top_host->GetView());
 }
 
 }  // namespace content