Make text input type and password visibility bit independent in Textfield

ui/views/controls/textfield/textfield.h

Index: ui/views/controls/textfield/textfield.h
diff --git a/ui/views/controls/textfield/textfield.h b/ui/views/controls/textfield/textfield.h
index 6c62fa727cb4e787bff6a96a407d03d79089611e..08dcc1472dc643893350d4459f77e8d609d8065d 100644
--- a/ui/views/controls/textfield/textfield.h
+++ b/ui/views/controls/textfield/textfield.h
@@ -52,7 +52,12 @@ class VIEWS_EXPORT Textfield : public View {
   };
 
   Textfield();
+
+  // The initial text input type is set to TEXT_INPUT_TYPE_PASSWORD
+  // if STYLE_OBSCURED is set in |style|. Otherwise it is set to
+  // TEXT_INPUT_TYPE_TEXT.
   explicit Textfield(StyleFlags style);
+
   virtual ~Textfield();
 
   // TextfieldController accessors
@@ -64,14 +69,16 @@ class VIEWS_EXPORT Textfield : public View {
   void SetReadOnly(bool read_only);
 
   // Gets/sets the STYLE_OBSCURED bit, controlling whether characters in this
-  // Textfield are displayed as asterisks/bullets.
+  // Textfield are displayed as asterisks/bullets. This does not affect the
+  // text input type.
   // TODO(bryeung): Currently SetObscured is only used in
   // chrome/browser/chromeos/options/wifi_config_view.cc, which is being
   // converted to WebUI.  Please remove it when that happens.
   bool IsObscured() const;
   void SetObscured(bool obscured);
 
-  // Gets/Sets the input type of this textfield.
+  // Gets/Sets the input type of this textfield. TEXT_INPUT_TYPE_PASSWORD
+  // disables the IME, but does not hide the text (use STYLE_OBSCURED for that).
   ui::TextInputType GetTextInputType() const;
   void SetTextInputType(ui::TextInputType type);