Add argument to pass elastic overscroll delta to Blink (Chrome side)

cc/trees/layer_tree_host_unittest.cc

 // Copyright 2011 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 <algorithm>
 
 #include "base/auto_reset.h"
 #include "base/synchronization/lock.h"
@@ skipping 5454 matching lines @@
     PostSetNeedsCommitToMainThread();
   }
 
   void BeginMainFrame(const BeginFrameArgs& args) override {
     EXPECT_EQ(nullptr, layer_tree_host()->root_layer());
 
     layer_tree_host()->ApplyScrollAndScale(&info_);
     EndTest();
   }
 
-  void ApplyViewportDeltas(
-      const gfx::Vector2d& inner,
-      const gfx::Vector2d& outer,
-      float scale_delta,
-      float top_controls_delta) override {
+  void ApplyViewportDeltas(const gfx::Vector2d& inner,
+                           const gfx::Vector2d& outer,
+                           const gfx::Vector2dF& elastic_overscroll_delta,
+                           float scale_delta,
+                           float top_controls_delta) override {
     EXPECT_EQ(info_.page_scale_delta, scale_delta);
     EXPECT_EQ(info_.top_controls_delta, top_controls_delta);
     deltas_sent_to_client_ = true;
   }
 
   void ApplyViewportDeltas(
       const gfx::Vector2d& scroll,
       float scale_delta,
       float top_controls_delta) override {
     EXPECT_EQ(info_.page_scale_delta, scale_delta);
@@ skipping 445 matching lines @@
 
  protected:
   FakeContentLayerClient client_;
   size_t notify_ready_to_activate_count_;
   size_t scheduled_manage_tiles_count_;
 };
 
 MULTI_THREAD_IMPL_TEST_F(LayerTreeHostTestOneActivatePerManageTiles);
 
 }  // namespace cc