Fixes text field background when disabled/read-only to better match...

chrome/views/text_field.h

Index: chrome/views/text_field.h
===================================================================
--- chrome/views/text_field.h	(revision 5301)
+++ chrome/views/text_field.h	(working copy)
@@ -136,6 +136,7 @@
   void RemoveBorder();
 
   // Disable the edit control.
+  // NOTE: this does NOT change the read only property.
   void SetEnabled(bool enabled);
 
  private:
@@ -150,6 +151,9 @@
   // Reset the text field native control.
   void ResetNativeControl();
 
+  // Resets the background color of the edit.
+  void UpdateEditBackgroundColor();
+
   // This encapsulates the HWND of the native text field.
   HWNDView* native_view_;