Enable pinch-zoom telemetry on Mac

content/browser/renderer_host/input/synthetic_touchscreen_pinch_gesture.h

 // Copyright 2013 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 CONTENT_BROWSER_RENDERER_HOST_INPUT_SYNTHETIC_PINCH_GESTURE_H_
-#define CONTENT_BROWSER_RENDERER_HOST_INPUT_SYNTHETIC_PINCH_GESTURE_H_
+#ifndef CONTENT_BROWSER_RENDERER_HOST_INPUT_SYNTHETIC_TOUCHSCREEN_PINCH_GESTURE_H_
+#define CONTENT_BROWSER_RENDERER_HOST_INPUT_SYNTHETIC_TOUCHSCREEN_PINCH_GESTURE_H_
 
 #include "base/time/time.h"
 #include "content/browser/renderer_host/input/synthetic_gesture.h"
 #include "content/browser/renderer_host/input/synthetic_gesture_target.h"
 #include "content/common/content_export.h"
 #include "content/common/input/synthetic_pinch_gesture_params.h"
 #include "content/common/input/synthetic_web_input_event_builders.h"
 #include "third_party/WebKit/public/web/WebInputEvent.h"
 
 namespace content {
 
-class CONTENT_EXPORT SyntheticPinchGesture : public SyntheticGesture {
+class CONTENT_EXPORT SyntheticTouchscreenPinchGesture
+    : public SyntheticGesture {
  public:
-  explicit SyntheticPinchGesture(const SyntheticPinchGestureParams& params);
-  ~SyntheticPinchGesture() override;
+  explicit SyntheticTouchscreenPinchGesture(
+      const SyntheticPinchGestureParams& params);
+  ~SyntheticTouchscreenPinchGesture() override;
 
   SyntheticGesture::Result ForwardInputEvents(
       const base::TimeTicks& timestamp,
       SyntheticGestureTarget* target) override;
 
  private:
-  enum GestureState {
-    SETUP,
-    STARTED,
-    MOVING,
-    DONE
-  };
+  enum GestureState { SETUP, STARTED, MOVING, DONE };
 
   void ForwardTouchInputEvents(const base::TimeTicks& timestamp,
                                SyntheticGestureTarget* target);
 
   void UpdateTouchPoints(const base::TimeTicks& timestamp);
   void PressTouchPoints(SyntheticGestureTarget* target,
                         const base::TimeTicks& timestamp);
-  void MoveTouchPoints(SyntheticGestureTarget* target, float delta,
+  void MoveTouchPoints(SyntheticGestureTarget* target,
+                       float delta,
                        const base::TimeTicks& timestamp);
   void ReleaseTouchPoints(SyntheticGestureTarget* target,
                           const base::TimeTicks& timestamp);
   void ForwardTouchEvent(SyntheticGestureTarget* target,
                          const base::TimeTicks& timestamp);
 
   void SetupCoordinatesAndStopTime(SyntheticGestureTarget* target);
   float GetDeltaForPointer0AtTime(const base::TimeTicks& timestamp) const;
   base::TimeTicks ClampTimestamp(const base::TimeTicks& timestamp) const;
   bool HasReachedTarget(const base::TimeTicks& timestamp) const;
 
   SyntheticPinchGestureParams params_;
   float start_y_0_;
   float start_y_1_;
   float max_pointer_delta_0_;
   SyntheticGestureParams::GestureSourceType gesture_source_type_;
   GestureState state_;
   SyntheticWebTouchEvent touch_event_;
   base::TimeTicks start_time_;
   base::TimeTicks stop_time_;
 
  private:
-  DISALLOW_COPY_AND_ASSIGN(SyntheticPinchGesture);
+  DISALLOW_COPY_AND_ASSIGN(SyntheticTouchscreenPinchGesture);
 };
 
 }  // namespace content
 
-#endif  // CONTENT_BROWSER_RENDERER_HOST_INPUT_SYNTHETIC_PINCH_GESTURE_H_
+#endif  // CONTENT_BROWSER_RENDERER_HOST_INPUT_SYNTHETIC_TOUCHSCREEN_PINCH_GESTURE_H_