Integrate the new input method API for Views into Chromium.

views/controls/textfield/textfield_controller.h

Index: views/controls/textfield/textfield_controller.h
diff --git a/views/controls/textfield/textfield_controller.h b/views/controls/textfield/textfield_controller.h
index ee8df1b18b13939ef44164af5e5027357cf876dc..a50f2e90c2f1e8f7cfc80702d65df5b73bd1fee0 100644
--- a/views/controls/textfield/textfield_controller.h
+++ b/views/controls/textfield/textfield_controller.h
@@ -17,7 +17,9 @@ class Textfield;
 // in the state of a text field.
 class TextfieldController {
  public:
-  // This method is called whenever the text in the field changes.
+  // This method is called whenever the text in the field is changed by the
+  // user. It won't be called if the text is changed by calling
+  // Textfield::SetText() or Textfield::AppendText().
   virtual void ContentsChanged(Textfield* sender,
                                const string16& new_contents) = 0;