gpu benchmarking swipe for touchpad

content/browser/renderer_host/input/synthetic_gesture_target_base.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/input/synthetic_gesture_target_base.h"
 
 #include "content/browser/renderer_host/render_widget_host_impl.h"
 #include "content/browser/renderer_host/render_widget_host_view_base.h"
 #include "content/browser/renderer_host/ui_events_helper.h"
 #include "content/common/input_messages.h"
 #include "third_party/WebKit/public/platform/WebInputEvent.h"
 #include "ui/events/blink/web_input_event_traits.h"
 #include "ui/events/event.h"
 #include "ui/events/latency_info.h"
 
 using blink::WebInputEvent;
 using blink::WebTouchEvent;
 using blink::WebTouchPoint;
 using blink::WebMouseEvent;
 using blink::WebMouseWheelEvent;
+using blink::WebGestureEvent;
 
 namespace content {
 namespace {
 
 // This value was determined experimentally. It was sufficient to not cause a
 // fling on Android and Aura.
 const int kPointerAssumedStoppedTimeMs = 100;
 
 // SyntheticGestureTargetBase passes input events straight on to the renderer
 // without going through a gesture recognition framework. There is thus no touch
@@ skipping 37 matching lines @@
     CHECK(PointIsWithinContents(web_wheel.x, web_wheel.y))
         << "Mouse wheel position is not within content bounds.";
     DispatchWebMouseWheelEventToPlatform(web_wheel, latency_info);
   } else if (WebInputEvent::isMouseEventType(event.type())) {
     const WebMouseEvent& web_mouse =
         static_cast<const WebMouseEvent&>(event);
     CHECK(event.type() != WebInputEvent::MouseDown ||
           PointIsWithinContents(web_mouse.x, web_mouse.y))
         << "Mouse pointer is not within content bounds on MouseDown.";
     DispatchWebMouseEventToPlatform(web_mouse, latency_info);
+  } else if (event.type() == WebInputEvent::GestureFlingStart) {
+    const WebGestureEvent& gesture_event =
+        static_cast<const WebGestureEvent&>(event);
+    CHECK(gesture_event.sourceDevice == blink::WebGestureDeviceTouchpad)
+        << "The gesture event source must be touchpad.";
+    DispatchTouchpadGestureFlingStartToPlatform(gesture_event, latency_info);
   } else {
     NOTREACHED();
   }
 }
 
 void SyntheticGestureTargetBase::DispatchWebTouchEventToPlatform(
       const blink::WebTouchEvent& web_touch,
       const ui::LatencyInfo& latency_info) {
   // We assume that platforms supporting touch have their own implementation of
   // SyntheticGestureTarget to route the events through their respective input
   // stack.
   CHECK(false) << "Touch events not supported for this browser.";
 }
 
 void SyntheticGestureTargetBase::DispatchWebMouseWheelEventToPlatform(
       const blink::WebMouseWheelEvent& web_wheel,
       const ui::LatencyInfo& latency_info) {
   host_->ForwardWheelEventWithLatencyInfo(web_wheel, latency_info);
 }
 
 void SyntheticGestureTargetBase::DispatchWebMouseEventToPlatform(
       const blink::WebMouseEvent& web_mouse,
       const ui::LatencyInfo& latency_info) {
   host_->ForwardMouseEventWithLatencyInfo(web_mouse, latency_info);
 }
 
+void SyntheticGestureTargetBase::DispatchTouchpadGestureFlingStartToPlatform(
+    const blink::WebGestureEvent& web_gesture,
+    const ui::LatencyInfo& latency_info) {
+  DCHECK_EQ(web_gesture.type(), WebInputEvent::GestureFlingStart);
+  DCHECK_EQ(web_gesture.sourceDevice, blink::WebGestureDeviceTouchpad);
+  host_->ForwardGestureEventWithLatencyInfo(web_gesture, latency_info);
+}
+
 void SyntheticGestureTargetBase::SetNeedsFlush() {
   host_->SetNeedsFlush();
 }
 
 SyntheticGestureParams::GestureSourceType
 SyntheticGestureTargetBase::GetDefaultSyntheticGestureSourceType() const {
   return SyntheticGestureParams::MOUSE_INPUT;
 }
 
 base::TimeDelta SyntheticGestureTargetBase::PointerAssumedStoppedTime()
@@ skipping 12 matching lines @@
   return 0.0f;
 }
 
 bool SyntheticGestureTargetBase::PointIsWithinContents(int x, int y) const {
   gfx::Rect bounds = host_->GetView()->GetViewBounds();
   bounds -= bounds.OffsetFromOrigin();  // Translate the bounds to (0,0).
   return bounds.Contains(x, y);
 }
 
 }  // namespace content