Misc. cleanup for theme provider code, including:...

views/widget/default_theme_provider.h

 // Copyright (c) 2009 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 VIEWS_DEFAULT_THEME_PROVIDER_H_
 #define VIEWS_DEFAULT_THEME_PROVIDER_H_
 
+#include <vector>
+
 #include "app/theme_provider.h"
 #include "base/basictypes.h"
 
 class Profile;
 class ResourceBundle;
 
 namespace views {
 
 class DefaultThemeProvider : public ThemeProvider {
  public:
   DefaultThemeProvider() { };
   virtual ~DefaultThemeProvider() { };
 
   // Overridden from ThemeProvider.
-  virtual void Init(Profile* profile);
+  virtual void Init(Profile* profile) { }
   virtual SkBitmap* GetBitmapNamed(int id);
-  virtual SkColor GetColor(int id);
-  virtual bool GetDisplayProperty(int id, int* result);
+  virtual SkColor GetColor(int id) {
+    // Return debugging-blue.
+    return 0xff0000ff;
+  }
+  virtual bool GetDisplayProperty(int id, int* result) { return false; }
   virtual bool ShouldUseNativeFrame();
-  virtual bool HasCustomImage(int id);
+  virtual bool HasCustomImage(int id) { return false; }
   virtual bool GetRawData(int id, std::vector<unsigned char>* raw_data) {
     return false;
   }
 
  private:
   DISALLOW_COPY_AND_ASSIGN(DefaultThemeProvider);
 };
 
 }  // namespace views
 
 #endif  // VIEWS_DEFAULT_THEME_PROVIDER_H_