Shows the info bubble when the location bar icon is clicked in the origin chip.

chrome/browser/ui/cocoa/location_bar/zoom_decoration.mm

 // Copyright (c) 2012 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.
 
 #import "chrome/browser/ui/cocoa/location_bar/zoom_decoration.h"
 
 #include "base/strings/string16.h"
 #include "base/strings/string_number_conversions.h"
 #include "chrome/app/chrome_command_ids.h"
 #import "chrome/browser/ui/cocoa/location_bar/autocomplete_text_field.h"
@@ skipping 77 matching lines @@
 bool ZoomDecoration::ShouldShowDecoration() const {
   return owner_->GetWebContents() != NULL &&
       !owner_->GetToolbarModel()->input_in_progress() &&
       (bubble_ || !IsAtDefaultZoom());
 }
 
 bool ZoomDecoration::AcceptsMousePress() {
   return true;
 }
 
-bool ZoomDecoration::OnMousePressed(NSRect frame) {
+bool ZoomDecoration::OnMousePressed(NSRect frame, NSPoint location) {
   if (bubble_)
     CloseBubble();
   else
     ShowBubble(NO);
   return true;
 }
 
 NSString* ZoomDecoration::GetToolTip() {
   return tooltip_.get();
 }
 
 content::WebContents* ZoomDecoration::GetWebContents() {
   return owner_->GetWebContents();
 }
 
 void ZoomDecoration::OnClose() {
   bubble_ = nil;
 
   // If the page is at default zoom then hiding the zoom decoration
   // was suppressed while the bubble was open. Now that the bubble is
   // closed the decoration can be hidden.
   if (IsAtDefaultZoom() && IsVisible()) {
     SetVisible(false);
     owner_->OnDecorationsChanged();
   }
 }