NOT FOR LANDING - [WebView] Allow fling animation via the LayerScrollOffsetDelegate

content/public/browser/android/synchronous_compositor_client.h

 // 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.
 
 #ifndef CONTENT_PUBLIC_BROWSER_ANDROID_SYNCHRONOUS_COMPOSITOR_CLIENT_H_
 #define CONTENT_PUBLIC_BROWSER_ANDROID_SYNCHRONOUS_COMPOSITOR_CLIENT_H_
 
 #include "base/basictypes.h"
+#include "base/callback_forward.h"
+#include "base/time/time.h"
 #include "ui/gfx/geometry/size_f.h"
 #include "ui/gfx/vector2d_f.h"
 
 namespace content {
 
 class SynchronousCompositor;
 
 class SynchronousCompositorClient {
  public:
   // Indication to the client that |compositor| is now initialized on the
@@ skipping 11 matching lines @@
       gfx::Vector2dF max_scroll_offset) = 0;
   virtual void SetTotalRootLayerScrollOffset(gfx::Vector2dF new_value) = 0;
   virtual gfx::Vector2dF GetTotalRootLayerScrollOffset() = 0;
   virtual bool IsExternalFlingActive() const = 0;
   virtual void SetRootLayerPageScaleFactorAndLimits(
       float page_scale_factor,
       float min_page_scale_factor,
       float max_page_scale_factor) = 0;
   virtual void SetRootLayerScrollableSize(gfx::SizeF scrollable_size) = 0;
 
+  typedef base::Callback<void(base::TimeTicks)> AnimationCallback;
+  virtual void SetNeedsAnimate(const AnimationCallback& animation) = 0;
+
   virtual void DidOverscroll(gfx::Vector2dF accumulated_overscroll,
                              gfx::Vector2dF latest_overscroll_delta,
                              gfx::Vector2dF current_fling_velocity) = 0;
 
   // When true, should periodically call
   // SynchronousCompositorOutputSurface::DemandDrawHw. Note that this value
   // can change inside DemandDrawHw call.
   virtual void SetContinuousInvalidate(bool invalidate) = 0;
 
   virtual void DidUpdateContent() = 0;
 
  protected:
   SynchronousCompositorClient() {}
   virtual ~SynchronousCompositorClient() {}
 
  private:
   DISALLOW_COPY_AND_ASSIGN(SynchronousCompositorClient);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_ANDROID_SYNCHRONOUS_COMPOSITOR_CLIENT_H_