Change overscroll functions to pass floats.

content/browser/web_contents/web_contents_view_aura.h

 // 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.
 
 #ifndef CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_VIEW_AURA_H_
 #define CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_VIEW_AURA_H_
 
 #include <vector>
 
 #include "base/memory/ref_counted.h"
@@ skipping 70 matching lines @@
   // animates in, or the content window animates out).
   void CompleteOverscrollNavigation(OverscrollMode mode);
 
   // Returns the window that should be animated for the overscroll gesture.
   // (note that during the overscroll gesture, either the overlay window or the
   // content window can be animated).
   aura::Window* GetWindowToAnimateForOverscroll();
 
   // Returns the amount the animating window should be translated in response to
   // the overscroll gesture.
-  gfx::Vector2d GetTranslationForOverscroll(int delta_x, int delta_y);
+  gfx::Vector2dF GetTranslationForOverscroll(float delta_x, float delta_y);
 
   // A window showing the screenshot is overlayed during a navigation triggered
   // by overscroll. This function sets this up.
   void PrepareOverscrollNavigationOverlay();
 
   // Changes the brightness of the layer depending on the amount of horizontal
   // overscroll (|delta_x|, in pixels).
   void UpdateOverscrollWindowBrightness(float delta_x);
 
   void AttachTouchEditableToRenderView();
 
-  void OverscrollUpdateForWebContentsDelegate(int delta_y);
+  void OverscrollUpdateForWebContentsDelegate(float delta_y);
 
   // Overridden from WebContentsView:
   virtual gfx::NativeView GetNativeView() const override;
   virtual gfx::NativeView GetContentNativeView() const override;
   virtual gfx::NativeWindow GetTopLevelNativeWindow() const override;
   virtual void GetContainerBounds(gfx::Rect *out) const override;
   virtual void SizeContents(const gfx::Size& size) override;
   virtual void Focus() override;
   virtual void SetInitialFocus() override;
   virtual void StoreFocus() override;
@@ skipping 122 matching lines @@
   // On Windows we can run into problems if resources get released within the
   // initialization phase while the content (and its dimensions) are not known.
   bool is_or_was_visible_;
 
   DISALLOW_COPY_AND_ASSIGN(WebContentsViewAura);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_VIEW_AURA_H_