android_webview: Let AwContents manage TouchHandleDrawable

android_webview/browser/browser_view_renderer_client.h

 // 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.
 
 #ifndef ANDROID_WEBVIEW_BROWSER_BROWSER_VIEW_RENDERER_CLIENT_H_
 #define ANDROID_WEBVIEW_BROWSER_BROWSER_VIEW_RENDERER_CLIENT_H_
 
 #include "base/android/scoped_java_ref.h"
 #include "ui/gfx/geometry/point.h"
 #include "ui/gfx/geometry/size_f.h"
 #include "ui/gfx/geometry/vector2d_f.h"
+#include "ui/touch_selection/touch_handle.h"

[boliu, 2016/08/24 23:35:30]

forward declare should be enough here

[Jinsuk Kim, 2016/08/25 07:32:21]

Done.

 
 namespace android_webview {
 struct ParentCompositorDrawConstraints;
 
 class BrowserViewRendererClient {
  public:
 
   // Called when a new Picture is available. Needs to be enabled
   // via the EnableOnNewPicture method.
   virtual void OnNewPicture() = 0;
@@ skipping 17 matching lines @@
   virtual void UpdateScrollState(const gfx::Vector2d& max_scroll_offset,
                                  const gfx::SizeF& contents_size_dip,
                                  float page_scale_factor,
                                  float min_page_scale_factor,
                                  float max_page_scale_factor) = 0;
 
   // Handle overscroll.
   virtual void DidOverscroll(const gfx::Vector2d& overscroll_delta,
                              const gfx::Vector2dF& overscroll_velocity) = 0;
 
+  virtual ui::TouchHandleDrawable* CreateDrawable(float dip_scale) = 0;
+
  protected:
   virtual ~BrowserViewRendererClient() {}
 };
 
 }  // namespace android_webview
 
 #endif  // ANDROID_WEBVIEW_BROWSER_BROWSER_VIEW_RENDERER_CLIENT_H_