[Mac][Material Design] Adjust bookmark spacing and folder menu drawing.

chrome/browser/ui/cocoa/bookmarks/bookmark_bar_folder_controller.mm

Index: chrome/browser/ui/cocoa/bookmarks/bookmark_bar_folder_controller.mm
diff --git a/chrome/browser/ui/cocoa/bookmarks/bookmark_bar_folder_controller.mm b/chrome/browser/ui/cocoa/bookmarks/bookmark_bar_folder_controller.mm
index de372e4be69481972d4eb0ab219e7b8eff142c8d..0efc9a69dfbef438e33e853dce9316dde89e6003 100644
--- a/chrome/browser/ui/cocoa/bookmarks/bookmark_bar_folder_controller.mm
+++ b/chrome/browser/ui/cocoa/bookmarks/bookmark_bar_folder_controller.mm
@@ -332,6 +332,13 @@ CGFloat BookmarkBottomVerticalPadding() {
   NSRect windowFrame = [[self window] frame];
   NSRect scrollViewFrame = [scrollView_ frame];
   padding_ = NSWidth(windowFrame) - NSWidth(scrollViewFrame);
+  // In Material Design, each menu row spans the entire width of the menu.
+  if (ui::MaterialDesignController::IsModeMaterial()) {
+    scrollViewFrame.size.width += 2 * padding_;
+    scrollViewFrame.origin.x = 0;
+    [scrollView_ setFrame:scrollViewFrame];

[tapted, 2016/08/04 02:00:55]

I think has the unwanted side-effect of causing the menu NSWindows to lose their
rounded corners -- see http://i.imgur.com/os613QH.png - trimming the scroll view
from top and bottom (as well) may be able to fix it, but that will probably
affect some offsets elsewhere.

[shrike, 2016/08/04 20:54:47]

Thanks for catching that. This new patchset should address the issue.

+    padding_ = 0;
+  }
   verticalScrollArrowHeight_ = NSHeight([scrollUpArrowView_ frame]);
 
   ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
@@ -390,7 +397,7 @@ CGFloat BookmarkBottomVerticalPadding() {
                                                image:image
                                       menuController:menuController];
   if (ui::MaterialDesignController::IsModeMaterial()) {
-    [cell setTag:kMaterialStandardButtonTypeWithLimitedClickFeedback];
+    [cell setTag:kMaterialMenuButtonTypeWithLimitedClickFeedback];
   } else {
     [cell setTag:kStandardButtonTypeWithLimitedClickFeedback];
   }