Use native theme colors for textfields; etc.

ui/views/controls/textfield/native_textfield_wrapper.h

Index: ui/views/controls/textfield/native_textfield_wrapper.h
diff --git a/ui/views/controls/textfield/native_textfield_wrapper.h b/ui/views/controls/textfield/native_textfield_wrapper.h
index f5a6c5d4effbc3390bbaa7d66dfcff1322c2ed49..aaaaa15e08fd17b27893b34d77803a7116ee0777 100644
--- a/ui/views/controls/textfield/native_textfield_wrapper.h
+++ b/ui/views/controls/textfield/native_textfield_wrapper.h
@@ -72,9 +72,6 @@ class VIEWS_EXPORT NativeTextfieldWrapper {
   // Updates the background color used when painting the native text field.
   virtual void UpdateBackgroundColor() = 0;
 
-  // Updates the cursor color used when painting the native text field.
-  virtual void UpdateCursorColor() = 0;
-
   // Updates the read-only state of the native text field.
   virtual void UpdateReadOnly() = 0;
 
@@ -124,6 +121,10 @@ class VIEWS_EXPORT NativeTextfieldWrapper {
   // Returns the currnet cursor position.
   virtual size_t GetCursorPosition() const = 0;
 
+  // Get or set whether or not the cursor is enabled.
+  virtual bool GetCursorEnabled() const = 0;
+  virtual void SetCursorEnabled(bool enabled) = 0;
+
   // Following methods are to forward key/focus related events to the
   // views wrapper so that TextfieldViews can handle key inputs without
   // having focus.