Replace old with new synthetic gesture framework.

content/browser/renderer_host/synthetic_gesture_controller.cc

-// 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.
-
-#include "content/browser/renderer_host/synthetic_gesture_controller.h"
-
-#include "base/debug/trace_event.h"
-#include "base/message_loop/message_loop.h"
-#include "content/common/view_messages.h"
-#include "content/port/browser/render_widget_host_view_port.h"
-#include "content/port/browser/synthetic_gesture.h"
-#include "content/public/browser/render_widget_host.h"
-
-namespace content {
-
-namespace {
-
-// How many milliseconds apart synthetic scroll messages should be sent.
-const int kSyntheticGestureMessageIntervalMs = 7;
-
-}  // namespace
-
-SyntheticGestureController::SyntheticGestureController()
-    : rwh_(NULL) {
-}
-
-SyntheticGestureController::~SyntheticGestureController() {
-}
-
-void SyntheticGestureController::BeginSmoothScroll(
-    RenderWidgetHostViewPort* view,
-    const ViewHostMsg_BeginSmoothScroll_Params& params) {
-  if (pending_synthetic_gesture_.get())
-    return;
-
-  rwh_ = view->GetRenderWidgetHost();
-  pending_synthetic_gesture_ = view->CreateSmoothScrollGesture(
-      params.scroll_down,
-      params.pixels_to_scroll,
-      params.mouse_event_x,
-      params.mouse_event_y);
-
-  TRACE_EVENT_ASYNC_BEGIN0("benchmark", "SyntheticGestureController::running",
-      pending_synthetic_gesture_);
-  timer_.Start(FROM_HERE, GetSyntheticGestureMessageInterval(), this,
-               &SyntheticGestureController::OnTimer);
-}
-
-void SyntheticGestureController::BeginPinch(
-    RenderWidgetHostViewPort* view,
-    const ViewHostMsg_BeginPinch_Params& params) {
-  if (pending_synthetic_gesture_.get())
-    return;
-
-  rwh_ = view->GetRenderWidgetHost();
-  pending_synthetic_gesture_ = view->CreatePinchGesture(
-      params.zoom_in,
-      params.pixels_to_move,
-      params.anchor_x,
-      params.anchor_y);
-
-  TRACE_EVENT_ASYNC_BEGIN0("benchmark", "SyntheticGestureController::running",
-      pending_synthetic_gesture_);
-  timer_.Start(FROM_HERE, GetSyntheticGestureMessageInterval(), this,
-               &SyntheticGestureController::OnTimer);
-}
-
-base::TimeDelta
-    SyntheticGestureController::GetSyntheticGestureMessageInterval() const {
-  return base::TimeDelta::FromMilliseconds(kSyntheticGestureMessageIntervalMs);
-}
-
-void SyntheticGestureController::OnTimer() {
-  base::TimeTicks now = base::TimeTicks::Now();
-  if (!pending_synthetic_gesture_->ForwardInputEvents(now, rwh_)) {
-    timer_.Stop();
-    TRACE_EVENT_ASYNC_END0("benchmark", "SyntheticGestureController::running",
-        pending_synthetic_gesture_);
-    pending_synthetic_gesture_ = NULL;
-    rwh_->Send(new ViewMsg_SyntheticGestureCompleted(rwh_->GetRoutingID()));
-  }
-}
-
-}  // namespace content