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

views/widget/default_theme_provider.h

Index: views/widget/default_theme_provider.h
===================================================================
--- views/widget/default_theme_provider.h	(revision 28595)
+++ views/widget/default_theme_provider.h	(working copy)
@@ -5,6 +5,8 @@
 #ifndef VIEWS_DEFAULT_THEME_PROVIDER_H_
 #define VIEWS_DEFAULT_THEME_PROVIDER_H_
 
+#include <vector>
+
 #include "app/theme_provider.h"
 #include "base/basictypes.h"
 
@@ -19,12 +21,15 @@
   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;
   }