Rejigger ThemeService: move exposure of ThemeProvider interface to a

ui/base/theme_provider.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 UI_BASE_THEME_PROVIDER_H_
 #define UI_BASE_THEME_PROVIDER_H_
 
 #include "base/basictypes.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "ui/base/layout.h"
@@ skipping 29 matching lines @@
 //
 //   ThemeProvider is an abstract class that defines the API that should be
 //   implemented to provide bitmaps and color information for a given theme.
 //
 ////////////////////////////////////////////////////////////////////////////////
 
 class UI_BASE_EXPORT ThemeProvider {
  public:
   virtual ~ThemeProvider();
 
-  // Whether we're using the system theme (which may or may not be the
-  // same as the default theme).
-  virtual bool UsingSystemTheme() const = 0;
-
   // Get the image specified by |id|. An implementation of ThemeProvider should
   // have its own source of ids (e.g. an enum, or external resource bundle).
   virtual gfx::ImageSkia* GetImageSkiaNamed(int id) const = 0;
 
   // Get the color specified by |id|.
   virtual SkColor GetColor(int id) const = 0;
 
   // Get the property (e.g. an alignment expressed in an enum, or a width or
   // height) specified by |id|.
   virtual int GetDisplayProperty(int id) const = 0;
 
   // Whether we should use the native system frame (typically Aero glass) or
   // a custom frame.
   virtual bool ShouldUseNativeFrame() const = 0;
 
   // Whether or not we have a certain image. Used for when the default theme
   // doesn't provide a certain image, but custom themes might (badges, etc).
   virtual bool HasCustomImage(int id) const = 0;
 
   // Reads the image data from the theme file into the specified vector. Only
   // valid for un-themed resources and the themed IDR_THEME_NTP_* in most
   // implementations of ThemeProvider. Returns NULL on error.
   virtual base::RefCountedMemory* GetRawData(
       int id,
       ui::ScaleFactor scale_factor) const = 0;
 
 #if defined(OS_MACOSX)
+  // Whether we're using the system theme (which may or may not be the
+  // same as the default theme).
+  // TODO(estade): this should probably just be part of ThemeService and not
+  // ThemeProvider, but it's used in many places on OSX.
+  virtual bool UsingSystemTheme() const = 0;
+
   // Gets the NSImage with the specified |id|.
   virtual NSImage* GetNSImageNamed(int id) const = 0;
 
   // Gets the NSImage that GetNSImageNamed (above) would return, but returns it
   // as a pattern color.
   virtual NSColor* GetNSImageColorNamed(int id) const = 0;
 
   // Gets the NSColor with the specified |id|.
   virtual NSColor* GetNSColor(int id) const = 0;
 
   // Gets the NSColor for tinting with the specified |id|.
   virtual NSColor* GetNSColorTint(int id) const = 0;
 
   // Gets the NSGradient with the specified |id|.
   virtual NSGradient* GetNSGradient(int id) const = 0;
 #endif
 };
 
 }  // namespace ui
 
 #endif  // UI_BASE_THEME_PROVIDER_H_