[DevTools] Touch emulation in content.

content/browser/renderer_host/render_widget_host_impl.h

Index: content/browser/renderer_host/render_widget_host_impl.h
diff --git a/content/browser/renderer_host/render_widget_host_impl.h b/content/browser/renderer_host/render_widget_host_impl.h
index 7fcf7269ec5f820edeca9313b4a62bac48b20826..3d656ee804208ccf6991a467c66f736da099d287 100644
--- a/content/browser/renderer_host/render_widget_host_impl.h
+++ b/content/browser/renderer_host/render_widget_host_impl.h
@@ -26,6 +26,7 @@
 #include "content/browser/renderer_host/input/input_ack_handler.h"
 #include "content/browser/renderer_host/input/input_router_client.h"
 #include "content/browser/renderer_host/input/synthetic_gesture.h"
+#include "content/browser/renderer_host/input/touch_emulator_client.h"
 #include "content/common/input/synthetic_gesture_packet.h"
 #include "content/common/view_message_enums.h"
 #include "content/port/browser/event_with_latency_info.h"
@@ -84,6 +85,7 @@ class RenderWidgetHostDelegate;
 class RenderWidgetHostViewPort;
 class SyntheticGestureController;
 class TimeoutMonitor;
+class TouchEmulator;
 class WebCursor;
 struct EditCommand;
 
@@ -92,6 +94,7 @@ struct EditCommand;
 class CONTENT_EXPORT RenderWidgetHostImpl : virtual public RenderWidgetHost,
                                             public InputRouterClient,
                                             public InputAckHandler,
+                                            public TouchEmulatorClient,
                                             public IPC::Listener {
  public:
   // routing_id can be MSG_ROUTING_NONE, in which case the next available
@@ -298,13 +301,15 @@ class CONTENT_EXPORT RenderWidgetHostImpl : virtual public RenderWidgetHost,
 
   // Forwards the given message to the renderer. These are called by the view
   // when it has received a message.
-  void ForwardGestureEvent(const blink::WebGestureEvent& gesture_event);
+  // Some of these methods are TouchEmulatorClient overrides.
+  virtual void ForwardGestureEvent(

[jdduke (slow), 2014/04/07 18:12:37]

It's OK to re-order the TouchEmulatorClient specific methods into a single
grouping here, particularly if you add the method |ForwardTouchEvent| that does
the same logical thing as |ForwardGestureEvent|.

[dgozman, 2014/04/08 16:56:49]

Done.

+      const blink::WebGestureEvent& gesture_event) OVERRIDE;
   void ForwardGestureEventWithLatencyInfo(
       const blink::WebGestureEvent& gesture_event,
       const ui::LatencyInfo& ui_latency);
-  void ForwardTouchEventWithLatencyInfo(
+  virtual void ForwardTouchEventWithLatencyInfo(
       const blink::WebTouchEvent& touch_event,
-      const ui::LatencyInfo& ui_latency);
+      const ui::LatencyInfo& ui_latency) OVERRIDE;
   void ForwardMouseEventWithLatencyInfo(
       const blink::WebMouseEvent& mouse_event,
       const ui::LatencyInfo& ui_latency);
@@ -312,6 +317,9 @@ class CONTENT_EXPORT RenderWidgetHostImpl : virtual public RenderWidgetHost,
       const blink::WebMouseWheelEvent& wheel_event,
       const ui::LatencyInfo& ui_latency);
 
+  // Sets cursor to the view. TouchEmulatorClient override.
+  virtual void SetCursor(const WebCursor& cursor) OVERRIDE;
+
   // Queues a synthetic gesture for testing purposes.  Invokes the on_complete
   // callback when the gesture is finished running.
   void QueueSyntheticGesture(
@@ -668,6 +676,7 @@ class CONTENT_EXPORT RenderWidgetHostImpl : virtual public RenderWidgetHost,
   virtual void OnFocus();
   virtual void OnBlur();
   void OnSetCursor(const WebCursor& cursor);
+  void OnSetTouchEventEmulationEnabled(bool enabled);
   void OnTextInputTypeChanged(ui::TextInputType type,
                               ui::TextInputMode input_mode,
                               bool can_compose_inline);
@@ -916,6 +925,8 @@ class CONTENT_EXPORT RenderWidgetHostImpl : virtual public RenderWidgetHost,
 
   scoped_ptr<SyntheticGestureController> synthetic_gesture_controller_;
 
+  scoped_ptr<TouchEmulator> touch_emulator_;
+
   // Receives and handles all input events.
   scoped_ptr<InputRouter> input_router_;