Update the bookmark tooltip text only when necessary

chrome/browser/ui/views/bookmarks/bookmark_bar_view.h

Index: chrome/browser/ui/views/bookmarks/bookmark_bar_view.h
diff --git a/chrome/browser/ui/views/bookmarks/bookmark_bar_view.h b/chrome/browser/ui/views/bookmarks/bookmark_bar_view.h
index c210bc6c0f8c99d68ab174e9dc1bdf96c1078993..3d2984323e989037e9c7a1d9d5a1b126326e8fd2 100644
--- a/chrome/browser/ui/views/bookmarks/bookmark_bar_view.h
+++ b/chrome/browser/ui/views/bookmarks/bookmark_bar_view.h
@@ -44,6 +44,10 @@ namespace content {
 class PageNavigator;
 }
 
+namespace gfx {
+class FontList;
+}
+
 namespace views {
 class CustomButton;
 class MenuButton;
@@ -142,15 +146,15 @@ class BookmarkBarView : public views::AccessiblePaneView,
   void StopThrobbing(bool immediate);
 
   // Returns the tooltip text for the specified url and title. The returned
-  // text is clipped to fit within the bounds of the monitor. |context| is
-  // used to determine which display::Screen is used to retrieve bounds.
+  // text is clipped to fit the |max_width|.

[sky, 2016/11/17 01:08:28]

'the max_width' -> 'max_width'

[oshima, 2016/11/17 14:02:33]

Done.

   //
   // Note that we adjust the direction of both the URL and the title based on
   // the locale so that pure LTR strings are displayed properly in RTL locales.
-  static base::string16 CreateToolTipForURLAndTitle(const views::Widget* widget,
-                                              const gfx::Point& screen_loc,
-                                              const GURL& url,
-                                              const base::string16& title);
+  static base::string16 CreateToolTipForURLAndTitle(
+      int max_width,
+      const gfx::FontList& font_list,
+      const GURL& url,
+      const base::string16& title);
 
   // Returns true if Bookmarks Bar is currently detached from the Toolbar.
   bool IsDetached() const;