[Mac] Replace the custom bookmark menus with native NSMenus.

chrome/browser/ui/cocoa/bookmarks/bookmark_bar_controller.h

Index: chrome/browser/ui/cocoa/bookmarks/bookmark_bar_controller.h
diff --git a/chrome/browser/ui/cocoa/bookmarks/bookmark_bar_controller.h b/chrome/browser/ui/cocoa/bookmarks/bookmark_bar_controller.h
index 0db88f4947a40512833a8c282bbd950eb96be2fc..45f8781a26f27401acf25ddda0396408cb5da412 100644
--- a/chrome/browser/ui/cocoa/bookmarks/bookmark_bar_controller.h
+++ b/chrome/browser/ui/cocoa/bookmarks/bookmark_bar_controller.h
@@ -46,80 +46,10 @@ const CGFloat kBookmarkHorizontalPadding = 1.0;
 // Vertical frame inset for buttons in the bookmark bar.
 const CGFloat kBookmarkVerticalPadding = 2.0;
 
-// Used as a min/max width for buttons on menus (not on the bar).
-const CGFloat kBookmarkMenuButtonMinimumWidth = 100.0;
-const CGFloat kBookmarkMenuButtonMaximumWidth = 485.0;
-
-// The minimum separation between a folder menu and the edge of the screen.
-// If the menu gets closer to the edge of the screen (either right or left)
-// then it is pops up in the opposite direction.
-// (See -[BookmarkBarFolderController childFolderWindowLeftForWidth:]).
-const CGFloat kBookmarkHorizontalScreenPadding = 8.0;
-
-// Our NSScrollView is supposed to be just barely big enough to fit its
-// contentView.  It is actually a hair too small.
-// This turns on horizontal scrolling which, although slight, is awkward.
-// Make sure our window (and NSScrollView) are wider than its documentView
-// by at least this much.
-const CGFloat kScrollViewContentWidthMargin = 2;
-
-// Make subfolder menus overlap their parent menu a bit to give a better
-// perception of a menuing system.
-const CGFloat kBookmarkMenuOverlap = 2.0;
-
-// When constraining a scrolling bookmark bar folder window to the
-// screen, shrink the "constrain" by this much vertically.  Currently
-// this is 0.0 to avoid a problem with tracking areas leaving the
-// window, but should probably be 8.0 or something.
-const CGFloat kScrollWindowVerticalMargin = 6.0;
-
 // How far to offset a folder menu from the top of the bookmark bar. This
 // is set just above the bar so that it become distinctive when drawn.
 const CGFloat kBookmarkBarMenuOffset = 2.0;
 
-// How far to offset a folder menu's left edge horizontally in relation to
-// the left edge of the button from which it springs. Because of drawing
-// differences, simply aligning the |frame| of each does not render the
-// pproper result, so we have to offset.
-const CGFloat kBookmarkBarButtonOffset = 2.0;
-
-// Delay before opening a subfolder (and closing the previous one)
-// when hovering over a folder button.
-const NSTimeInterval kHoverOpenDelay = 0.3;
-
-// Delay on hover before a submenu opens when dragging.
-// Experimentally a drag hover open delay needs to be bigger than a
-// normal (non-drag) menu hover open such as used in the bookmark folder.
-//  TODO(jrg): confirm feel of this constant with ui-team.
-//  http://crbug.com/36276
-const NSTimeInterval kDragHoverOpenDelay = 0.7;
-
-// Notes on use of kDragHoverCloseDelay in
-// -[BookmarkBarFolderController draggingEntered:].
-//
-// We have an implicit delay on stop-hover-open before a submenu
-// closes.  This cannot be zero since it's nice to move the mouse in a
-// direct line from "current position" to "position of item in
-// submenu".  However, by doing so, it's possible to overlap a
-// different button on the current menu.  Example:
-//
-//  Folder1
-//  Folder2  ---> Sub1
-//  Folder3       Sub2
-//                Sub3
-//
-// If you hover over the F in Folder2 to open the sub, and then want to
-// select Sub3, a direct line movement of the mouse may cross over
-// Folder3.  Without this delay, that'll cause Sub to be closed before
-// you get there, since a "hover over" of Folder3 gets activated.
-// It's subtle but without the delay it feels broken.
-//
-// This is only really a problem with vertical menu --> vertical menu
-// movement; the bookmark bar (horizontal menu, sort of) seems fine,
-// perhaps because mouse move direction is purely vertical so there is
-// no opportunity for overlap.
-const NSTimeInterval kDragHoverCloseDelay = 0.4;
-
 }  // namespace bookmarks
 
 // The interface for the bookmark bar controller's delegate. Currently, the