cocoa: move first run bubble's arrow

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

 // Copyright 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/location_bar_view_mac.h"
 
 #include "base/bind.h"
 #import "base/mac/mac_util.h"
 #include "base/memory/ptr_util.h"
 #include "base/stl_util.h"
@@ skipping 633 matching lines @@
   bool icons_updated = false;
   for (const auto& decoration : content_setting_decorations_)
     icons_updated |= decoration->UpdateFromWebContents(web_contents);
   return icons_updated;
 }
 
 void LocationBarViewMac::ShowFirstRunBubbleInternal() {
   if (!field_ || ![field_ window])
     return;
 
-  // The first run bubble's left edge should line up with the left edge of the
-  // omnibox. This is different from other bubbles, which line up at a point
-  // set by their top arrow. Because the BaseBubbleController adjusts the
-  // window origin left to account for the arrow spacing, the first run bubble
-  // moves the window origin right by this spacing, so that the
-  // BaseBubbleController will move it back to the correct position.
-  const NSPoint kOffset = NSMakePoint(
-      info_bubble::kBubbleArrowXOffset + info_bubble::kBubbleArrowWidth/2.0,
-      kFirstRunBubbleYOffset);
+  // Point the bubble's arrow at the middle of the bottom of the page info icon.
+  const NSPoint kOffset =
+      NSMakePoint(info_bubble::kBubbleArrowXOffset, kFirstRunBubbleYOffset);
   [FirstRunBubbleController showForView:field_
                                  offset:kOffset
                                 browser:browser_
                                 profile:profile()];
 }
 
 void LocationBarViewMac::UpdateTranslateDecoration() {
   if (!TranslateService::IsTranslateBubbleEnabled())
     return;
 
@@ skipping 132 matching lines @@
     OnDecorationsChanged();
 }
 
 std::vector<NSView*> LocationBarViewMac::GetDecorationAccessibilityViews() {
   std::vector<LocationBarDecoration*> decorations = GetDecorations();
   std::vector<NSView*> views;
   for (auto* decoration : decorations)
     views.push_back(decoration->GetAccessibilityView());
   return views;
 }