Implement Material Design for Mac toolbar.

chrome/browser/ui/cocoa/themed_window.h

 // Copyright (c) 2010 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_THEMED_WINDOW_H_
 #define CHROME_BROWSER_UI_COCOA_THEMED_WINDOW_H_
 
 #import <Cocoa/Cocoa.h>
 
 namespace ui {
@@ skipping 17 matching lines @@
   THEME_IMAGE_ALIGN_WITH_FRAME,
   // Aligns the top of the theme image with the top of the tabs.
   // Use this for IDR_THEME_TAB_BACKGROUND and IDR_THEME_TOOLBAR.
   THEME_IMAGE_ALIGN_WITH_TAB_STRIP
 };
 
 // Implemented by windows that support theming.
 @interface NSWindow (ThemeProvider)
 - (const ThemeProvider*)themeProvider;
 - (ThemedWindowStyle)themedWindowStyle;
+- (BOOL)inIncognitoMode;
+// Return YES if using the system (i.e. non-custom) theme and Incognito mode.
+- (BOOL)inIncognitoModeWithSystemTheme;
+// Return YES if Incongnito, or a custom theme with a dark toolbar color or
+// light tab text.
+- (BOOL)hasDarkTheme;
 
 // Returns the position in window coordinates that the top left of a theme
 // image with |alignment| should be painted at. The result of this method can
 // be used in conjunction with [NSGraphicsContext cr_setPatternPhase:] to set
 // the offset of pattern colors.
 - (NSPoint)themeImagePositionForAlignment:(ThemeImageAlignment)alignment;
 @end
 
 // Adopted by views that want to redraw when the theme changed, or when the
 // window's active status changed.
 @protocol ThemedWindowDrawing
 
 // Called by the window controller when the theme changed.
 - (void)windowDidChangeTheme;
 
 // Called by the window controller when the window gained or lost main window
 // status.
 - (void)windowDidChangeActive;
 
 @end
 
 #endif  // CHROME_BROWSER_UI_COCOA_THEMED_WINDOW_H_