Refactorings to vr controller code.

chrome/browser/android/vr_shell/vr_input_manager.h

 // Copyright 2016 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 CHROME_BROWSER_ANDROID_VR_SHELL_VR_INPUT_MANAGER_H_
 #define CHROME_BROWSER_ANDROID_VR_SHELL_VR_INPUT_MANAGER_H_
 
+#include "base/memory/ref_counted.h"
+#include "chrome/browser/android/vr_shell/vr_gesture.h"
 #include "content/public/browser/render_widget_host.h"
 #include "content/public/browser/render_widget_host_view.h"
 #include "content/public/browser/web_contents.h"
 #include "third_party/WebKit/public/web/WebInputEvent.h"
 
 namespace vr_shell {
 
 class RenderFrameHost;
 
-class VrInputManager {
+class VrInputManager
+    : public base::RefCountedThreadSafe<VrInputManager>  {
  public:
   explicit VrInputManager(content::WebContents* web_contents);
 
-  ~VrInputManager();
+  void ProcessUpdatedGesture(VrGesture gesture);
 
   void SendScrollEvent(int64_t time_ms,
                        float x,
                        float y,
                        float dx,
                        float dy,
                        int type);
   void SendClickEvent(int64_t time_ms, float x, float y);
   void SendMouseMoveEvent(int64_t time_ms, float x, float y, int type);
 
   void ScrollBegin(int64_t time_ms,
                    float x,
                    float y,
                    float hintx,
                    float hinty,
                    bool target_viewport);
   void ScrollEnd(int64_t time_ms);
   void ScrollBy(int64_t time_ms, float x, float y, float dx, float dy);
   void PinchBegin(int64_t time_ms, float x, float y);
   void PinchEnd(int64_t time_ms);
   void PinchBy(int64_t time_ms, float x, float y, float delta);
   void SendPinchEvent(int64_t time_ms, float x, float y, float dz, int type);
 
+ protected:
+  friend class base::RefCountedThreadSafe<VrInputManager>;
+  virtual ~VrInputManager();
+
  private:
-  void SendGestureEvent(const blink::WebGestureEvent& event);
-  void SendMouseEvent(const blink::WebMouseEvent& event);
+  void SendGesture(VrGesture gesture);
+  void ForwardGestureEvent(const blink::WebGestureEvent& event);
+  void ForwardMouseEvent(const blink::WebMouseEvent& event);
   blink::WebGestureEvent MakeGestureEvent(blink::WebInputEvent::Type type,
                                           int64_t time_ms,
                                           float x,
                                           float y) const;
 
   // Device scale factor.
   float dpi_scale_;
 
   content::WebContents* web_contents_;
   DISALLOW_COPY_AND_ASSIGN(VrInputManager);
 };
 
 }  // namespace vr_shell
 
 #endif  // CHROME_BROWSER_ANDROID_VR_SHELL_VR_INPUT_MANAGER_H_