[ios clean] Add overflow buttons for ToolsMenu.

ios/clean/chrome/browser/ui/toolbar/toolbar_view_controller.mm

Index: ios/clean/chrome/browser/ui/toolbar/toolbar_view_controller.mm
diff --git a/ios/clean/chrome/browser/ui/toolbar/toolbar_view_controller.mm b/ios/clean/chrome/browser/ui/toolbar/toolbar_view_controller.mm
index 0e4487db404e9bcf03ca9d64b7e7da54be1313b2..2aafad26dfed145876842f762f100bdb6b62a9f9 100644
--- a/ios/clean/chrome/browser/ui/toolbar/toolbar_view_controller.mm
+++ b/ios/clean/chrome/browser/ui/toolbar/toolbar_view_controller.mm
@@ -84,6 +84,10 @@ CGFloat kVerticalMargin = 5.0f;
   ]];
 }
 
+- (void)viewWillLayoutSubviews {
+  [self closeToolsMenu:nil];

[edchin, 2017/02/15 04:14:50]

Pls comment that this closes the menu when the device is rotated,
or the app is split on tablet,
and ensures that you don't get an inconsistent state when 
device has both compact and regular widths.

[marq (ping after 24h), 2017/02/15 15:06:16]

I'd like to not "fake" calls to target/action methods for cases like this; this
should just call [self.toolbarCommandHandler closeToolsMenu];

[sczs, 2017/02/16 00:31:39]

Done.

+}
+
 #pragma mark - Components Setup
 
 - (void)setUpToolbarButtons {