Resend unconsumed scroll update from guest back to embedder (WebView Scroll Bubble).

content/public/test/browser_test_utils.cc

 // Copyright (c) 2012 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/public/test/browser_test_utils.h"
 
 #include "base/auto_reset.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/json/json_reader.h"
@@ skipping 392 matching lines @@
 void SimulateMouseEvent(WebContents* web_contents,
                         blink::WebInputEvent::Type type,
                         const gfx::Point& point) {
   blink::WebMouseEvent mouse_event;
   mouse_event.type = type;
   mouse_event.x = point.x();
   mouse_event.y = point.y();
   web_contents->GetRenderViewHost()->ForwardMouseEvent(mouse_event);
 }
 
+void SimulateMouseWheelEvent(WebContents* web_contents,
+                             const gfx::Point& point,
+                             const gfx::Vector2d& delta) {
+  blink::WebMouseWheelEvent wheel_event;
+  wheel_event.type = blink::WebInputEvent::MouseWheel;
+  wheel_event.x = point.x();
+  wheel_event.y = point.y();
+  wheel_event.deltaX = delta.x();
+  wheel_event.deltaY = delta.y();
+  RenderWidgetHostImpl* widget_host =
+      RenderWidgetHostImpl::From(web_contents->GetRenderViewHost());
+  widget_host->ForwardWheelEvent(wheel_event);
+}
+
+void SimulateGestureScrollSequence(WebContents* web_contents,
+                                   const gfx::Point& point,
+                                   const gfx::Vector2dF& delta) {
+  RenderWidgetHostImpl* widget_host =
+      RenderWidgetHostImpl::From(web_contents->GetRenderViewHost());
+
+  blink::WebGestureEvent scroll_begin;
+  scroll_begin.type = blink::WebGestureEvent::GestureScrollBegin;
+  scroll_begin.x = point.x();
+  scroll_begin.y = point.y();
+  widget_host->ForwardGestureEvent(scroll_begin);
+
+  blink::WebGestureEvent scroll_update;
+  scroll_update.type = blink::WebGestureEvent::GestureScrollUpdate;
+  scroll_update.x = point.x();
+  scroll_update.y = point.y();
+  scroll_update.data.scrollUpdate.deltaX = delta.x();
+  scroll_update.data.scrollUpdate.deltaY = delta.y();
+  scroll_update.data.scrollUpdate.velocityX = 0;
+  scroll_update.data.scrollUpdate.velocityY = 0;
+  widget_host->ForwardGestureEvent(scroll_update);
+
+  blink::WebGestureEvent scroll_end;
+  scroll_end.type = blink::WebGestureEvent::GestureScrollEnd;
+  scroll_end.x = point.x() + delta.x();
+  scroll_end.y = point.y() + delta.y();
+  widget_host->ForwardGestureEvent(scroll_end);
+}
+
 void SimulateTapAt(WebContents* web_contents, const gfx::Point& point) {
   blink::WebGestureEvent tap;
   tap.type = blink::WebGestureEvent::GestureTap;
   tap.x = point.x();
   tap.y = point.y();
   tap.modifiers = blink::WebInputEvent::ControlKey;
   RenderWidgetHostImpl* widget_host =
       RenderWidgetHostImpl::From(web_contents->GetRenderViewHost());
   widget_host->ForwardGestureEvent(tap);
 }
@@ skipping 564 matching lines @@
 void FrameWatcher::WaitFrames(int frames_to_wait) {
   if (frames_to_wait <= 0)
     return;
   base::RunLoop run_loop;
   base::AutoReset<base::Closure> reset_quit(&quit_, run_loop.QuitClosure());
   base::AutoReset<int> reset_frames_to_wait(&frames_to_wait_, frames_to_wait);
   run_loop.Run();
 }
 
 }  // namespace content