Don't draw a window title on browser windows.

chrome/browser/ui/cocoa/apps/native_app_window_cocoa.mm

Index: chrome/browser/ui/cocoa/apps/native_app_window_cocoa.mm
diff --git a/chrome/browser/ui/cocoa/apps/native_app_window_cocoa.mm b/chrome/browser/ui/cocoa/apps/native_app_window_cocoa.mm
index a4ad4eabc04d88a0f14caf214ffa876118597cd7..6850748fbe7008b9dae379a85fb858de4733f633 100644
--- a/chrome/browser/ui/cocoa/apps/native_app_window_cocoa.mm
+++ b/chrome/browser/ui/cocoa/apps/native_app_window_cocoa.mm
@@ -211,10 +211,29 @@ std::vector<gfx::Rect> CalculateNonDraggableRegions(
 @end
 @implementation ShellNSWindow
 
+- (instancetype)initWithContentRect:(NSRect)contentRect
+                          styleMask:(NSUInteger)windowStyle
+                            backing:(NSBackingStoreType)bufferingType
+                              defer:(BOOL)deferCreation {
+  if ((self = [super initWithContentRect:contentRect
+                               styleMask:windowStyle
+                                 backing:bufferingType
+                                   defer:deferCreation])) {
+    if ([self respondsToSelector:@selector(setTitleVisibility:)])
+      self.titleVisibility = NSWindowTitleHidden;
+  }
+
+  return self;
+}
+
 // Similar to ChromeBrowserWindow, don't draw the title, but allow it to be seen
 // in menus, Expose, etc.
 - (BOOL)_isTitleHidden {
-  return YES;
+  // Only intervene with 10.6-10.9.
+  if ([self respondsToSelector:@selector(setTitleVisibility:)])
+    return [super _isTitleHidden];
+  else
+    return YES;
 }
 
 @end