add a new set of commands to resize and position windows

chrome/browser/ui/cocoa/browser_window_cocoa.mm

Index: chrome/browser/ui/cocoa/browser_window_cocoa.mm
diff --git a/chrome/browser/ui/cocoa/browser_window_cocoa.mm b/chrome/browser/ui/cocoa/browser_window_cocoa.mm
index f5b2d54a63ee256c270723d25ae07e86181d59cd..141f62941840a68124f1062974fe709f5fc5765a 100644
--- a/chrome/browser/ui/cocoa/browser_window_cocoa.mm
+++ b/chrome/browser/ui/cocoa/browser_window_cocoa.mm
@@ -425,6 +425,14 @@ void BrowserWindowCocoa::Restore() {
     [window() deminiaturize:controller_];
 }
 
+void BrowserWindowCocoa::SetFullscreen(bool fullscreen) {
+  if (fullscreen)
+    GetExclusiveAccessContext()->EnterFullscreen(
+        GURL(), EXCLUSIVE_ACCESS_BUBBLE_TYPE_NONE);
+  else
+    GetExclusiveAccessContext()->ExitFullscreen();
+}
+
 bool BrowserWindowCocoa::ShouldHideUIForFullscreen() const {
   // On Mac, fullscreen mode has most normal things (in a slide-down panel).
   return false;