Remove OriginChip code.

chrome/browser/ui/omnibox/omnibox_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.
 
 // This file defines the interface class OmniboxView.  Each toolkit will
 // implement the edit view differently, so that code is inherently platform
 // specific.  However, the OmniboxEditModel needs to do some communication with
 // the view.  Since the model is shared between platforms, we need to define an
 // interface that all view implementations will share.
 
@@ skipping 26 matching lines @@
  public:
   virtual ~OmniboxView();
 
   // Used by the automation system for getting at the model from the view.
   OmniboxEditModel* model() { return model_.get(); }
   const OmniboxEditModel* model() const { return model_.get(); }
 
   CommandUpdater* command_updater() { return command_updater_; }
   const CommandUpdater* command_updater() const { return command_updater_; }
 
-  // Handle mouse release events concerning the origin chip.
-  void HandleOriginChipMouseRelease();
-
   // Shared cross-platform focus handling.
   void OnDidKillFocus();
 
   // For use when switching tabs, this saves the current state onto the tab so
   // that it can be restored during a later call to Update().
   virtual void SaveStateToTab(content::WebContents* tab) = 0;
 
   // Called when the window's active tab changes.
   virtual void OnTabChanged(const content::WebContents* web_contents) = 0;
 
   // Called when any relevant state changes other than changing tabs.
   virtual void Update() = 0;
 
-  // Updates the placeholder text with the value of GetHintText() if the
-  // origin chip is enabled.
+  // Updates the placeholder text with the value of GetHintText() if possible.

[Justin Donnelly, 2014/11/21 19:15:24]

To avoid ambiguity, suggest replacing "if possible" with "if the show hint text
field trial is enabled."

[groby-ooo-7-16, 2014/12/02 18:40:10]

Slightly different wording, omitting "field trial", since that's an impl detail.

   virtual void UpdatePlaceholderText() = 0;
 
   // Asks the browser to load the specified match, using the supplied
   // disposition. |alternate_nav_url|, if non-empty, contains the
   // alternate navigation URL for for this match. See comments on
   // AutocompleteResult::GetAlternateNavURL().
   //
   // |pasted_text| should only be set if this call is due to a
   // Paste-And-Go/Search action.
   //
@@ skipping 213 matching lines @@
   // |model_| can be NULL in tests.
   scoped_ptr<OmniboxEditModel> model_;
   OmniboxEditController* controller_;
 
   // The object that handles additional command functionality exposed on the
   // edit, such as invoking the keyword editor.
   CommandUpdater* command_updater_;
 };
 
 #endif  // CHROME_BROWSER_UI_OMNIBOX_OMNIBOX_VIEW_H_