Implement learn more bubble on views.

chrome/browser/ui/views/autofill/decorated_textfield.h

Index: chrome/browser/ui/views/autofill/decorated_textfield.h
diff --git a/chrome/browser/ui/views/autofill/decorated_textfield.h b/chrome/browser/ui/views/autofill/decorated_textfield.h
index b14798a46629d14e84e1d4f5c4a8a515ea982359..b936b9c5451243a52837aa274b97254d551ed7c7 100644
--- a/chrome/browser/ui/views/autofill/decorated_textfield.h
+++ b/chrome/browser/ui/views/autofill/decorated_textfield.h
@@ -6,6 +6,7 @@
 #define CHROME_BROWSER_UI_VIEWS_AUTOFILL_DECORATED_TEXTFIELD_H_
 
 #include "base/memory/scoped_ptr.h"
+#include "base/memory/weak_ptr.h"
 #include "base/strings/string16.h"
 #include "ui/gfx/image/image.h"
 #include "ui/views/controls/textfield/textfield.h"
@@ -18,6 +19,8 @@ class TextfieldController;
 
 namespace autofill {
 
+class LearnMoreIconDelegate;
+
 // A class which holds a textfield and draws extra stuff on top, like
 // invalid content indications.
 class DecoratedTextfield : public views::Textfield {
@@ -41,9 +44,10 @@ class DecoratedTextfield : public views::Textfield {
   // text.
   void SetIcon(const gfx::Image& icon);
 
-  // Sets a tooltip for this field. This will override the icon set with
+  // Sets a learn more icon for this field. This will override the icon set with
   // SetIcon(), if any, and will be overridden by future calls to SetIcon().
-  void SetTooltipIcon(const base::string16& text);
+  void SetLearnMoreIcon(const base::string16& text,
+                        const base::WeakPtr<LearnMoreIconDelegate>& delegate);
 
   // views::Textfield implementation.
   virtual base::string16 GetPlaceholderText() const OVERRIDE;
@@ -64,7 +68,7 @@ class DecoratedTextfield : public views::Textfield {
   // necessary for the sake of the padding around the native textfield.
   void UpdateBackground();
 
-  // Called to update the layout after SetIcon or SetTooltipIcon has been
+  // Called to update the layout after SetIcon or SetLearnMoreIcon has been
   // called.
   void IconChanged();