[MC] Add the product name to the tray controller's title.

ui/message_center/cocoa/tray_view_controller.mm

Index: ui/message_center/cocoa/tray_view_controller.mm
diff --git a/ui/message_center/cocoa/tray_view_controller.mm b/ui/message_center/cocoa/tray_view_controller.mm
index cf49a95e2565a05edf485f229429bf271d3582ff..67b0cdf712dc5f28e0167ea7d97ab7ab10f60922 100644
--- a/ui/message_center/cocoa/tray_view_controller.mm
+++ b/ui/message_center/cocoa/tray_view_controller.mm
@@ -35,7 +35,7 @@ const int kBackButtonSize = 16;
   frozen_ = frozen;
 }
 
--(NSPoint)constrainScrollPoint:(NSPoint)proposedNewOrigin {
+- (NSPoint)constrainScrollPoint:(NSPoint)proposedNewOrigin {
   return frozen_ ? [self documentVisibleRect].origin :
       [super constrainScrollPoint:proposedNewOrigin];
 }
@@ -110,6 +110,15 @@ const CGFloat kTrayBottomMargin = 75;
   return self;
 }
 
+- (NSString*)trayTitle {
+  return [title_ stringValue];
+}
+
+- (void)setTrayTitle:(NSString*)title {
+  [title_ setStringValue:title];
+  [title_ sizeToFit];
+}
+
 - (void)onWindowClosing {
   if (animation_) {
     [animation_ stopAnimation];