cc: Add DISALLOW_COPY_AND_ASSIGN where appropriate.

cc/resources/platform_color.h

Index: cc/resources/platform_color.h
diff --git a/cc/resources/platform_color.h b/cc/resources/platform_color.h
index f1b1cc614f9620545fc7c2e5e2fefab8d7bcf6d7..a144471fbccec1b4ff48499f97fcd5c60d0eaa0a 100644
--- a/cc/resources/platform_color.h
+++ b/cc/resources/platform_color.h
@@ -5,6 +5,7 @@
 #ifndef CC_RESOURCES_PLATFORM_COLOR_H_
 #define CC_RESOURCES_PLATFORM_COLOR_H_
 
+#include "base/basictypes.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebGraphicsContext3D.h"
 #include "third_party/khronos/GLES2/gl2.h"
 #include "third_party/khronos/GLES2/gl2ext.h"
@@ -54,6 +55,9 @@ class PlatformColor {
         return false;
     }
   }
+
+ private:
+  DISALLOW_IMPLICIT_CONSTRUCTORS(PlatformColor);
 };
 
 }  // namespace cc