[Mac] Fix for fullscreen toolbar layout issues

chrome/browser/ui/cocoa/browser_window_layout.mm

Index: chrome/browser/ui/cocoa/browser_window_layout.mm
diff --git a/chrome/browser/ui/cocoa/browser_window_layout.mm b/chrome/browser/ui/cocoa/browser_window_layout.mm
index b9dc6328d96078f6ed13db66fb3950db546c4192..0ab98c7bdb859bfcac8aa3891e07db578b521884 100644
--- a/chrome/browser/ui/cocoa/browser_window_layout.mm
+++ b/chrome/browser/ui/cocoa/browser_window_layout.mm
@@ -280,8 +280,14 @@ const CGFloat kLocationBarRightOffset = 35;
 
   // Lay out the toolbar.
   if (parameters.hasToolbar) {
-    output_.toolbarFrame = NSMakeRect(
-        0, maxY - parameters_.toolbarHeight, width, parameters_.toolbarHeight);
+    CGFloat toolbarY = maxY;
+    if (parameters_.inAnyFullscreen &&
+        parameters_.toolbarStyle == FullscreenToolbarStyle::TOOLBAR_NONE) {
+      toolbarY = parameters_.windowSize.height + fullscreenYOffset_;
+    }
+
+    output_.toolbarFrame = NSMakeRect(0, toolbarY - parameters_.toolbarHeight,
+                                      width, parameters_.toolbarHeight);
     maxY = NSMinY(output_.toolbarFrame);
   } else if (parameters_.hasLocationBar) {
     CGFloat toolbarX = kLocBarLeftRightInset;