Early terminate flings when scrolling impossible

cc/trees/layer_tree_host_unittest_scroll.cc

 // Copyright 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 "cc/trees/layer_tree_host.h"
 
 #include "base/memory/weak_ptr.h"
 #include "cc/layers/content_layer.h"
 #include "cc/layers/layer.h"
 #include "cc/layers/layer_impl.h"
@@ skipping 1070 matching lines @@
     if (!task_runner_->BelongsToCurrentThread())
       ADD_FAILURE() << "Animate called on wrong thread";
   }
 
   virtual void MainThreadHasStoppedFlinging() OVERRIDE {
     if (!task_runner_->BelongsToCurrentThread())
       ADD_FAILURE() << "MainThreadHasStoppedFlinging called on wrong thread";
     *received_stop_flinging_ = true;
   }
 
-  virtual void DidOverscroll(const DidOverscrollParams& params) OVERRIDE {
+  virtual void DidOverscroll(const gfx::Vector2dF& accumulated_overscroll,
+                             const gfx::Vector2dF& latest_overscroll_delta)
+      OVERRIDE {
     if (!task_runner_->BelongsToCurrentThread())
       ADD_FAILURE() << "DidOverscroll called on wrong thread";
   }
 
  private:
   base::SingleThreadTaskRunner* task_runner_;
   bool* received_stop_flinging_;
 };
 
 void BindInputHandlerOnCompositorThread(
@@ skipping 124 matching lines @@
     RunTest(true, false, false);
 }
 
 TEST_F(LayerTreeHostScrollTestLayerStructureChange, ScrollDestroyWholeTree) {
     scroll_destroy_whole_tree_ = true;
     RunTest(true, false, false);
 }
 
 }  // namespace
 }  // namespace cc