Revert 236254 "Replace old with new synthetic gesture framework."

trunk/src/content/browser/renderer_host/input/synthetic_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_GESTURE_H_
-#define CONTENT_BROWSER_RENDERER_HOST_INPUT_SYNTHETIC_GESTURE_H_
-
-#include "base/memory/scoped_ptr.h"
-#include "base/time/time.h"
-#include "content/common/content_export.h"
-#include "content/common/input/synthetic_gesture_params.h"
-#include "third_party/WebKit/public/web/WebInputEvent.h"
-
-namespace content {
-
-class SyntheticGestureTarget;
-
-// Base class for synthetic gesture implementations. A synthetic gesture class
-// is responsible for forwaring InputEvents, simulating the gesture, to a
-// SyntheticGestureTarget.
-//
-// Adding new gesture types involved the following steps:
-//   1) Create a sub-type of SyntheticGesture that implements the gesture.
-//   2) Extend SyntheticGesture::Create with the new class.
-//   3) Add at least one unit test per supported input source type (touch,
-//      mouse, etc) to SyntheticGestureController unit tests. The unit tests
-//      only checks basic functionality and termination. If the gesture is
-//      hooked up to Telemetry its correctness can additionally be tested there.
-class CONTENT_EXPORT SyntheticGesture {
- public:
-  SyntheticGesture();
-  virtual ~SyntheticGesture();
-
-  static scoped_ptr<SyntheticGesture> Create(
-      const SyntheticGestureParams& gesture_params);
-
-  enum Result {
-    GESTURE_RUNNING,
-    GESTURE_FINISHED,
-    GESTURE_SOURCE_TYPE_NOT_IMPLEMENTED,
-    GESTURE_SOURCE_TYPE_NOT_SUPPORTED_BY_PLATFORM,
-    GESTURE_RESULT_MAX = GESTURE_SOURCE_TYPE_NOT_SUPPORTED_BY_PLATFORM
-  };
-
-  // Update the state of the gesture and forward the appropriate events to the
-  // platform. This function is called repeatedly by the synthetic gesture
-  // controller until it stops returning GESTURE_RUNNING.
-  virtual Result ForwardInputEvents(
-      const base::TimeDelta& interval, SyntheticGestureTarget* target) = 0;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(SyntheticGesture);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_BROWSER_RENDERER_HOST_INPUT_SYNTHETIC_GESTURE_H_