Change overscroll functions to pass floats.

chrome/browser/ui/views/frame/browser_view.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 CHROME_BROWSER_UI_VIEWS_FRAME_BROWSER_VIEW_H_
 #define CHROME_BROWSER_UI_VIEWS_FRAME_BROWSER_VIEW_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 345 matching lines @@
   virtual void Paste() override;
   virtual WindowOpenDisposition GetDispositionForPopupBounds(
       const gfx::Rect& bounds) override;
   virtual FindBar* CreateFindBar() override;
   virtual web_modal::WebContentsModalDialogHost*
       GetWebContentsModalDialogHost() override;
   virtual void ShowAvatarBubble(content::WebContents* web_contents,
                                 const gfx::Rect& rect) override;
   virtual void ShowAvatarBubbleFromAvatarButton(AvatarBubbleMode mode,
       const signin::ManageAccountsParams& manage_accounts_params) override;
-  virtual void OverscrollUpdate(int delta_y) override;
+  virtual void OverscrollUpdate(float delta_y) override;
   virtual int GetRenderViewHeightInsetWithDetachedBookmarkBar() override;
   virtual void ExecuteExtensionCommand(
       const extensions::Extension* extension,
       const extensions::Command& command) override;
 
   // Overridden from BrowserWindowTesting:
   virtual BookmarkBarView* GetBookmarkBarView() const override;
   virtual LocationBarView* GetLocationBarView() const override;
   virtual views::View* GetTabContentsContainerView() const override;
   virtual ToolbarView* GetToolbarView() const override;
@@ skipping 334 matching lines @@
   scoped_ptr<ScrollEndEffectController> scroll_end_effect_controller_;
 
   scoped_ptr<WebContentsCloseHandler> web_contents_close_handler_;
 
   mutable base::WeakPtrFactory<BrowserView> activate_modal_dialog_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserView);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_FRAME_BROWSER_VIEW_H_