Suppress touchscreen tap immediately after a GestureFlingCancel

content/browser/renderer_host/tap_suppression_controller.h

Index: content/browser/renderer_host/tap_suppression_controller.h
diff --git a/content/browser/renderer_host/tap_suppression_controller.h b/content/browser/renderer_host/tap_suppression_controller.h
deleted file mode 100644
index 84a7c4821dfd6dc4a90e88d7cce2f3099f74f30d..0000000000000000000000000000000000000000
--- a/content/browser/renderer_host/tap_suppression_controller.h
+++ /dev/null
@@ -1,75 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.

[mohsen, 2013/02/04 15:09:05]

This file is renamed to touchpad_tap_suppression_controller.h. Its class is also
renamed to TouchpadTapSuppressionController. Nothing else is changed.

-// 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_TAP_SUPPRESSION_CONTROLLER_H_
-#define CONTENT_BROWSER_RENDERER_HOST_TAP_SUPPRESSION_CONTROLLER_H_
-
-#include "base/time.h"
-#include "base/timer.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/WebInputEvent.h"
-
-namespace content {
-
-class MockRenderWidgetHost;
-class RenderWidgetHostImpl;
-
-// Controls the suppression of taps (rapid mousedown/mouseup sequences)
-// immediately following the dispatch of a WebGestureFlingCancel event.
-// Only mousedown/mouseup of sufficient speed and within a specified time
-// window after a WebGestureFlingCancel are suppressed.
-class TapSuppressionController {
- public:
-
-  explicit TapSuppressionController(RenderWidgetHostImpl*);
-  ~TapSuppressionController();
-
-  // Called on the arrival of a mouse up event. Returns true if the hosting RWHV
-  // should suppress  the remaining mouseup handling at this time.
-  bool ShouldSuppressMouseUp();
-
-  // Called on a mouse down. Returns true if the hosting RWHV should not
-  // continue with handling the mouse down event at this time.
-  bool ShouldDeferMouseDown(
-      const WebKit::WebMouseEvent& event);
-
-  // Called on an ack of WebGestureFlingCancel event. |processed| is true when
-  // the GestureFlingCancel actually stopped a fling and therefore should
-  // suppress the forwarding of the following tap.
-  void GestureFlingCancelAck(bool processed);
-
-  // Called on the dispatch of a WebGestureFlingCancel event.
-  void GestureFlingCancel(double cancel_time);
-
- private:
-  friend class MockRenderWidgetHost;
-
-   enum State {
-     NOTHING,
-     GFC_IN_PROGRESS,
-     MD_STASHED,
-     LAST_CANCEL_STOPPED_FLING,
-  };
-
-  // Invoked once the maximum time deemed a tap from a mouse down event
-  // has expired. If the mouse up has not yet arrived, indicates that the mouse
-  // down / mouse up pair do not form a tap.
-  void MouseDownTimerExpired();
-
-  // Only a RenderWidgetHostViewImpl can own an instance.
-  RenderWidgetHostImpl* render_widget_host_;
-  base::OneShotTimer<TapSuppressionController> mouse_down_timer_;
-  WebKit::WebMouseEvent stashed_mouse_down_;
-  State state_;
-
-  // TODO(rjkroege): During debugging, the event times did not prove reliable.
-  // Replace the use of base::TimeTicks with an accurate event time when they
-  // become available post http://crbug.com/119556.
-  base::TimeTicks fling_cancel_time_;
-
-  DISALLOW_COPY_AND_ASSIGN(TapSuppressionController);
-};
-
-} // namespace content
-
-#endif  // CONTENT_BROWSER_RENDERER_HOST_TAP_SUPPRESSION_CONTROLLER_H_