[Mac] Update location bar colors when change themes in Material Design.

chrome/browser/ui/cocoa/location_bar/location_bar_view_mac.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_COCOA_LOCATION_BAR_LOCATION_BAR_VIEW_MAC_H_
 #define CHROME_BROWSER_UI_COCOA_LOCATION_BAR_LOCATION_BAR_VIEW_MAC_H_
 
 #include <string>
 
 #import <Cocoa/Cocoa.h>
@@ skipping 144 matching lines @@
   // Updates the controller, and, if |contents| is non-null, restores saved
   // state that the tab holds.
   void Update(const content::WebContents* contents);
 
   // Clears any location bar state stored for |contents|.
   void ResetTabState(content::WebContents* contents);
 
   // Set the location bar's icon to the correct image for the current URL.
   void UpdateLocationIcon();
 
+  // Set the location bar's controls to visibly match the current theme.
+  void UpdateColorsToMatchTheme();
+
   // Notify the location bar that it was added to the browser window. Provides
   // an update point for interface objects that need to set their appearance
   // based on the window's theme.
   void OnAddedToWindow();
 
+  // Notify the location bar that the browser window theme has changed. Provides
+  // an update point for interface objects that need to set their appearance
+  // based on the window's theme.
+  void OnThemeChanged();
+
   // ChromeOmniboxEditController:
   void UpdateWithoutTabRestore() override;
   void OnChanged() override;
   void OnSetFocus() override;
   void ShowURL() override;
   ToolbarModel* GetToolbarModel() override;
   const ToolbarModel* GetToolbarModel() const override;
   content::WebContents* GetWebContents() override;
 
   bool ShouldShowEVBubble() const;
@@ skipping 95 matching lines @@
   // Indicates whether or not the location bar is currently visible.
   bool location_bar_visible_;
 
   // Used to schedule a task for the first run info bubble.
   base::WeakPtrFactory<LocationBarViewMac> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(LocationBarViewMac);
 };
 
 #endif  // CHROME_BROWSER_UI_COCOA_LOCATION_BAR_LOCATION_BAR_VIEW_MAC_H_