Move middle-click autoscroll to synthetic fling.

content/renderer/render_widget.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/renderer/render_widget.h"
 
 #include <memory>
 #include <utility>
 
 #include "base/auto_reset.h"
@@ skipping 1409 matching lines @@
   // TODO(darin): Eliminate this temporary.
   WebCursor cursor;
   InitializeCursorFromWebCursorInfo(&cursor, cursor_info);
   // Only send a SetCursor message if we need to make a change.
   if (!current_cursor_.IsEqual(cursor)) {
     current_cursor_ = cursor;
     Send(new ViewHostMsg_SetCursor(routing_id_, cursor));
   }
 }
 
+void RenderWidget::AutoscrollStart(const blink::WebFloatPoint& point) {
+  Send(new ViewHostMsg_AutoscrollStart(routing_id_, point));
+}
+
+void RenderWidget::AutoscrollFling(const blink::WebFloatSize& velocity) {
+  Send(new ViewHostMsg_AutoscrollFling(routing_id_, velocity));
+}
+
+void RenderWidget::AutoscrollEnd() {
+  Send(new ViewHostMsg_AutoscrollEnd(routing_id_));
+}
+
 // We are supposed to get a single call to Show for a newly created RenderWidget
 // that was created via RenderWidget::CreateWebView.  So, we wait until this
 // point to dispatch the ShowWidget message.
 //
 // This method provides us with the information about how to display the newly
 // created RenderWidget (i.e., as a blocked popup or as a new tab).
 //
 void RenderWidget::Show(WebNavigationPolicy policy) {
   DCHECK(!did_show_) << "received extraneous Show call";
   DCHECK(routing_id_ != MSG_ROUTING_NONE);
@@ skipping 923 matching lines @@
     // browser side (https://crbug.com/669219).
     // If there is no WebFrameWidget, then there will be no
     // InputMethodControllers for a WebLocalFrame.
     return nullptr;
   }
   return static_cast<blink::WebFrameWidget*>(GetWebWidget())
       ->GetActiveWebInputMethodController();
 }
 
 }  // namespace content