Implement learn more bubble on views.

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

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_UI_VIEWS_AUTOFILL_DECORATED_TEXTFIELD_H_
 #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"
 #include "ui/views/controls/textfield/textfield.h"
 
 namespace views {
 class FocusableBorder;
 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 {
  public:
   static const char kViewClassName[];
 
   DecoratedTextfield(const base::string16& default_value,
                      const base::string16& placeholder,
                      views::TextfieldController* controller);
   virtual ~DecoratedTextfield();
 
   // Sets whether to indicate the textfield has invalid content.
   void SetInvalid(bool invalid);
   bool invalid() const { return invalid_; }
 
   // See docs for |editable_|.
   void SetEditable(bool editable);
   bool editable() const { return editable_; }
 
   // Sets the icon to be displayed inside the textfield at the end of the
   // 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;
 
   // views::View implementation.
   virtual const char* GetClassName() const OVERRIDE;
   virtual gfx::Size GetPreferredSize() OVERRIDE;
   virtual void Layout() OVERRIDE;
   virtual views::View* GetEventHandlerForPoint(const gfx::Point& point)
       OVERRIDE;
   virtual void OnFocus() OVERRIDE;
   virtual void OnBlur() OVERRIDE;
 
  private:
   FRIEND_TEST_ALL_PREFIXES(DecoratedTextfieldTest, HeightMatchesButton);
 
   // Updates the background of |this| after it may have changed. This is
   // 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();
 
   // This number corresponds to the number of pixels in the images that
   // are used to draw a views button which are above or below the actual border.
   // This number is encoded in the button assets themselves, so there's no other
   // way to get it than to hardcode it here.
   static const int kMagicInsetNumber;
 
   // We draw the border.
@@ skipping 10 matching lines @@
   // pieces of the textfield disappear (border, background, icon, placeholder
   // text) and it can't receive focus.
   bool editable_;
 
   DISALLOW_COPY_AND_ASSIGN(DecoratedTextfield);
 };
 
 }  // namespace autofill
 
 #endif  // CHROME_BROWSER_UI_VIEWS_AUTOFILL_DECORATED_TEXTFIELD_H_