Add ManagePasswordsDecoration and unit tests.

chrome/browser/ui/cocoa/location_bar/location_bar_view_mac.h

Index: chrome/browser/ui/cocoa/location_bar/location_bar_view_mac.h
diff --git a/chrome/browser/ui/cocoa/location_bar/location_bar_view_mac.h b/chrome/browser/ui/cocoa/location_bar/location_bar_view_mac.h
index 45cc29b1af752b8211a17c2193cfb35f90b0bc46..fa769f8bafe7665ae5599acf6d7b76d5f8ce5484 100644
--- a/chrome/browser/ui/cocoa/location_bar/location_bar_view_mac.h
+++ b/chrome/browser/ui/cocoa/location_bar/location_bar_view_mac.h
@@ -28,6 +28,7 @@ class GeneratedCreditCardDecoration;
 class KeywordHintDecoration;
 class LocationBarDecoration;
 class LocationIconDecoration;
+class ManagePasswordsDecoration;
 class MicSearchDecoration;
 class OriginChipDecoration;
 class PageActionDecoration;
@@ -64,7 +65,7 @@ class LocationBarViewMac : public LocationBar,
   virtual void FocusLocation(bool select_all) OVERRIDE;
   virtual void FocusSearch() OVERRIDE;
   virtual void UpdateContentSettingsIcons() OVERRIDE;
-  virtual void UpdateManagePasswordsIconAndBubble() OVERRIDE {};
+  virtual void UpdateManagePasswordsIconAndBubble() OVERRIDE;
   virtual void UpdatePageActions() OVERRIDE;
   virtual void InvalidatePageActions() OVERRIDE;
   virtual void UpdateOpenPDFInReaderPrompt() OVERRIDE;
@@ -266,6 +267,9 @@ class LocationBarViewMac : public LocationBar,
   // The left-hand-side origin chip.
   scoped_ptr<OriginChipDecoration> origin_chip_decoration_;
 
+  // The right-hand-side button to manage passwords associated with a page.
+  scoped_ptr<ManagePasswordsDecoration> manage_passwords_decoration_;
+
   Browser* browser_;
 
   // Used to register for notifications received by NotificationObserver.