Refactors code for WebGestureCurve to ui/events/gestures/blink

mojo/services/html_viewer/blink_platform_impl.cc

 // Copyright 2014 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 "mojo/services/html_viewer/blink_platform_impl.h"
 
 #include <cmath>
 
 #include "base/command_line.h"
 #include "base/rand_util.h"
 #include "base/stl_util.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/threading/platform_thread.h"
 #include "base/time/time.h"
 #include "mojo/services/html_viewer/blink_resource_constants.h"
 #include "mojo/services/html_viewer/webthread_impl.h"
 #include "net/base/data_url.h"
 #include "net/base/mime_util.h"
 #include "net/base/net_errors.h"
 #include "net/base/net_util.h"
 #include "third_party/WebKit/public/platform/WebWaitableEvent.h"
+#include "ui/events/gestures/blink/web_gesture_curve_impl.h"
 
 namespace html_viewer {
 namespace {
 
 // Allows overriding user agent scring.
 const char kUserAgentSwitch[] = "user-agent";
 
 // TODO(darin): Figure out what our UA should really be.
 const char kDefaultUserAgentString[] =
     "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) "
@@ skipping 218 matching lines @@
     const blink::WebVector<blink::WebWaitableEvent*>& web_events) {
   std::vector<base::WaitableEvent*> events;
   for (size_t i = 0; i < web_events.size(); ++i)
     events.push_back(static_cast<WebWaitableEventImpl*>(web_events[i])->impl());
   size_t idx = base::WaitableEvent::WaitMany(
       vector_as_array(&events), events.size());
   DCHECK_LT(idx, web_events.size());
   return web_events[idx];
 }
 
+blink::WebGestureCurve* BlinkPlatformImpl::createFlingAnimationCurve(
+    blink::WebGestureDevice device_source,
+    const blink::WebFloatPoint& velocity,
+    const blink::WebSize& cumulative_scroll) {
+  const bool is_main_thread = true;
+  return ui::WebGestureCurveImpl::CreateFromDefaultPlatformCurve(
+             gfx::Vector2dF(velocity.x, velocity.y),
+             gfx::Vector2dF(cumulative_scroll.width, cumulative_scroll.height),
+             is_main_thread).release();
+}
+
 // static
 void BlinkPlatformImpl::DestroyCurrentThread(void* thread) {
   WebThreadImplForMessageLoop* impl =
       static_cast<WebThreadImplForMessageLoop*>(thread);
   delete impl;
 }
 
 }  // namespace html_viewer