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

> Replace old with new synthetic gesture framework.
> 
> - Remove current implementation of synthetic gestures.
> - Rename temporarily named classes and files of new synthetic gesture framework
>   (e.g. SyntheticGestureNew -> SyntheticGesture).
> - Link up new implementation in browser and renderer.
> - Hook up synthetic gesture controller to input flushing in RWHI.
> - Update JavaScript front-end and Telemetry.
> 
> BUG=297980
> 
> Review URL: https://codereview.chromium.org/62443007

TBR=dominikg@chromium.org

Review URL: https://codereview.chromium.org/79143002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@236264 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 47 insertions, 0 deletions

diff --git a/content/port/browser/render_widget_host_view_port.h b/content/port/browser/render_widget_host_view_port.h
index fd8954f..bd13f73 100644
--- a/content/port/browser/render_widget_host_view_port.h
+++ b/content/port/browser/render_widget_host_view_port.h
@@ -270,6 +270,17 @@ class CONTENT_EXPORT RenderWidgetHostViewPort : public RenderWidgetHostView,
   virtual void ProcessAckedTouchEvent(const TouchEventWithLatencyInfo& touch,
                                       InputEventAckState ack_result) = 0;
 
+  // Asks the view to create a synthetic gesture that will be used to
+  // simulate a user-initiated scroll.
+  virtual SyntheticGesture* CreateSmoothScrollGesture(
+      bool scroll_down, int pixels_to_scroll, int mouse_event_x,
+      int mouse_event_y) = 0;
+
+  // Asks the view to create a synthetic gesture that will be used to
+  // simulate a user-initiated pinch-to-zoom.
+  virtual SyntheticGesture* CreatePinchGesture(
+      bool zoom_in, int pixels_to_move, int anchor_x, int anchor_y) = 0;
+
   virtual void SetHasHorizontalScrollbar(bool has_horizontal_scrollbar) = 0;
   virtual void SetScrollOffsetPinning(
       bool is_pinned_to_left, bool is_pinned_to_right) = 0;
diff --git a/content/port/browser/synthetic_gesture.h b/content/port/browser/synthetic_gesture.h
new file mode 100644
index 0000000..4330d76
--- /dev/null
+++ b/content/port/browser/synthetic_gesture.h
@@ -0,0 +1,36 @@
+// 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_PORT_BROWSER_SYNTHETIC_GESTURE_H_
+#define CONTENT_PORT_BROWSER_SYNTHETIC_GESTURE_H_
+
+#include "base/memory/ref_counted.h"
+#include "base/time/time.h"
+
+namespace content {
+
+class RenderWidgetHost;
+
+// This is a base class representing a single scroll gesture. These gestures are
+// paired with the rendering benchmarking system to (automatically) measure how
+// smoothnly chrome is responding to user input.
+class SyntheticGesture : public base::RefCounted<SyntheticGesture> {
+ public:
+
+  // When called, the gesture should compute its state at the provided timestamp
+  // and send the right input events to the provided RenderWidgetHost to
+  // simulate the gesture having run up to that point in time.
+  //
+  // This function should return true until the gesture is over. A false return
+  // value will stop ticking the gesture and clean it up.
+  virtual bool ForwardInputEvents(base::TimeTicks now,
+                                  RenderWidgetHost* host) = 0;
+ protected:
+  friend class base::RefCounted<SyntheticGesture>;
+  virtual ~SyntheticGesture() {}
+};
+
+} // namespace content
+
+#endif // CONTENT_PORT_BROWSER_SYNTHETIC_GESTURE_H_