[Merge] Make mouse buttons 8 - 11 navigate forward and back in history

ui/events/ozone/evdev/libgestures_glue/gesture_interpreter_libevdev_cros.h

 // 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.
 
 #ifndef UI_EVENTS_OZONE_EVDEV_LIBGESTURES_GLUE_GESTURE_INTERPRETER_LIBEVDEV_CROS_H_
 #define UI_EVENTS_OZONE_EVDEV_LIBGESTURES_GLUE_GESTURE_INTERPRETER_LIBEVDEV_CROS_H_
 
 #include <bitset>
 #include <gestures/gestures.h>
 #include <libevdev/libevdev.h>
@@ skipping 60 matching lines @@
   void OnGestureButtonsChange(const Gesture* gesture,
                               const GestureButtonsChange* move);
   void OnGestureContactInitiated(const Gesture* gesture);
   void OnGestureFling(const Gesture* gesture, const GestureFling* fling);
   void OnGestureSwipe(const Gesture* gesture, const GestureSwipe* swipe);
   void OnGestureSwipeLift(const Gesture* gesture,
                           const GestureSwipeLift* swipelift);
   void OnGesturePinch(const Gesture* gesture, const GesturePinch* pinch);
   void OnGestureMetrics(const Gesture* gesture, const GestureMetrics* metrics);
 
-  void DispatchMouseButton(unsigned int modifier,
+  void DispatchChangedMouseButtons(unsigned int changed_buttons,
+                                   bool down,
+                                   stime_t time);
+  void DispatchMouseButton(unsigned int button,
                            bool down,
                            stime_t time);
   void DispatchChangedKeys(unsigned long* changed_keys, stime_t timestamp);
   void ReleaseKeys(stime_t timestamp);
   bool SetMouseButtonState(unsigned int button, bool down);
   void ReleaseMouseButtons(stime_t timestamp);
 
   // The unique device id.
   int id_;
 
@@ skipping 29 matching lines @@
 
   // Gesture lib device properties.
   scoped_ptr<GestureDeviceProperties> device_properties_;
 
   DISALLOW_COPY_AND_ASSIGN(GestureInterpreterLibevdevCros);
 };
 
 }  // namspace ui
 
 #endif  // UI_EVENTS_OZONE_EVDEV_LIBGESTURES_GLUE_GESTURE_INTERPRETER_LIBEVDEV_CROS_H_