Notify OverscrollController of gesture events in plugins.

content/browser/renderer_host/overscroll_controller.h

 // Copyright (c) 2012 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_OVERSCROLL_CONTROLLER_H_
 #define CONTENT_BROWSER_RENDERER_HOST_OVERSCROLL_CONTROLLER_H_
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
+#include "content/common/content_export.h"
 #include "third_party/WebKit/public/platform/WebGestureEvent.h"
 #include "third_party/WebKit/public/platform/WebInputEvent.h"
 
 namespace content {
 
 class RenderWidgetHostViewAuraOverscrollTest;
 class OverscrollControllerDelegate;
 
 // Indicates the direction that the scroll is heading in relative to the screen,
 // with the top being NORTH.
@@ skipping 11 matching lines @@
   TOUCHPAD,
   TOUCHSCREEN,
 };
 
 // When a page is scrolled beyond the scrollable region, it will trigger an
 // overscroll gesture. This controller receives the events that are dispatched
 // to the renderer, and the ACKs of events, and updates the overscroll gesture
 // status accordingly.
 class OverscrollController {
  public:
-  OverscrollController();
-  virtual ~OverscrollController();
+  // Exported for testing.
+  // TODO(mcnee): Tests needing CONTENT_EXPORT are BrowserPlugin specific.
+  // Remove after removing BrowserPlugin (crbug.com/533069).
+  CONTENT_EXPORT OverscrollController();
+  CONTENT_EXPORT virtual ~OverscrollController();
 
   // This must be called when dispatching any event from the
   // RenderWidgetHostView so that the state of the overscroll gesture can be
   // updated properly. Returns true if the event was handled, in which case
   // further processing should cease.
   bool WillHandleEvent(const blink::WebInputEvent& event);
 
   // This must be called when the ACK for any event comes in. This updates the
   // overscroll gesture status as appropriate.
-  void ReceivedEventACK(const blink::WebInputEvent& event, bool processed);
+  // Virtual and exported for testing.
+  // TODO(mcnee): Tests needing CONTENT_EXPORT and virtual are BrowserPlugin
+  // specific. Remove after removing BrowserPlugin (crbug.com/533069).
+  CONTENT_EXPORT virtual void ReceivedEventACK(
+      const blink::WebInputEvent& event,
+      bool processed);
 
   // This must be called when a gesture event is filtered out and not sent to
   // the renderer.
   void DiscardingGestureEvent(const blink::WebGestureEvent& event);
 
   OverscrollMode overscroll_mode() const { return overscroll_mode_; }
 
   void set_delegate(OverscrollControllerDelegate* delegate) {
     delegate_ = delegate;
   }
@@ skipping 65 matching lines @@
   // The delegate that receives the overscroll updates. The delegate is not
   // owned by this controller.
   OverscrollControllerDelegate* delegate_;
 
   DISALLOW_COPY_AND_ASSIGN(OverscrollController);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_OVERSCROLL_CONTROLLER_H_