[OriginChip] Add animations for the hiding and showing of the chip.

chrome/browser/ui/omnibox/omnibox_edit_controller.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_OMNIBOX_OMNIBOX_EDIT_CONTROLLER_H_
 #define CHROME_BROWSER_UI_OMNIBOX_OMNIBOX_EDIT_CONTROLLER_H_
 
 #include "base/strings/string16.h"
 #include "content/public/common/page_transition_types.h"
 #include "ui/base/window_open_disposition.h"
@@ skipping 26 matching lines @@
   virtual void Update(const content::WebContents* contents) = 0;
 
   // Called when anything has changed that might affect the layout or contents
   // of the views around the edit, including the text of the edit and the
   // status of any keyword- or hint-related state.
   virtual void OnChanged() = 0;
 
   // Called whenever the autocomplete edit gets focused.
   virtual void OnSetFocus() = 0;
 
+  // Hides the origin chip and shows the URL.
+  virtual void ShowURL() = 0;
+
+  // Hides the origin chip while leaving the Omnibox empty.
+  void HideOriginChip();
+
+  // Shows the origin chip.  Hides the URL if it was previously shown by a call
+  // to ShowURL().
+  void ShowOriginChip();
+
   // Returns the InstantController, or NULL if instant is not enabled.
   virtual InstantController* GetInstant() = 0;
 
   // Returns the WebContents of the currently active tab.
   virtual content::WebContents* GetWebContents() = 0;
 
   virtual ToolbarModel* GetToolbarModel() = 0;
   virtual const ToolbarModel* GetToolbarModel() const = 0;
 
  protected:
   explicit OmniboxEditController(CommandUpdater* command_updater);
   virtual ~OmniboxEditController();
 
+  // Hides the URL and shows the origin chip.
+  virtual void HideURL() = 0;
+
   CommandUpdater* command_updater() { return command_updater_; }
   GURL destination_url() const { return destination_url_; }
   WindowOpenDisposition disposition() const { return disposition_; }
   content::PageTransition transition() const { return transition_; }
 
  private:
   CommandUpdater* command_updater_;
 
   // The details necessary to open the user's desired omnibox match.
   GURL destination_url_;
   WindowOpenDisposition disposition_;
   content::PageTransition transition_;
 
   DISALLOW_COPY_AND_ASSIGN(OmniboxEditController);
 };
 
 #endif  // CHROME_BROWSER_UI_OMNIBOX_OMNIBOX_EDIT_CONTROLLER_H_