Add the UI compositor to the Mac build

content/browser/compositor/software_output_device_x11.h

Index: content/browser/compositor/software_output_device_x11.h
diff --git a/content/browser/aura/software_output_device_x11.h b/content/browser/compositor/software_output_device_x11.h
similarity index 71%
rename from content/browser/aura/software_output_device_x11.h
rename to content/browser/compositor/software_output_device_x11.h
index 799a65ef790c894d4c89efdf77f7bc5675f9d39b..0bd07c3c95ccc7a42ac7ebb0b71cbbc2b2ad8d05 100644
--- a/content/browser/aura/software_output_device_x11.h
+++ b/content/browser/compositor/software_output_device_x11.h
@@ -1,9 +1,9 @@
-// Copyright 2013 The Chromium Authors. All rights reserved.
+// Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CONTENT_BROWSER_AURA_SOFTWARE_OUTPUT_DEVICE_X11_H_
-#define CONTENT_BROWSER_AURA_SOFTWARE_OUTPUT_DEVICE_X11_H_
+#ifndef CONTENT_BROWSER_COMPOSITOR_SOFTWARE_OUTPUT_DEVICE_X11_H_
+#define CONTENT_BROWSER_COMPOSITOR_SOFTWARE_OUTPUT_DEVICE_X11_H_
 
 #include <X11/Xlib.h>
 
@@ -33,4 +33,4 @@ class SoftwareOutputDeviceX11 : public cc::SoftwareOutputDevice {
 
 }  // namespace content
 
-#endif  // CONTENT_BROWSER_AURA_SOFTWARE_OUTPUT_DEVICE_X11_H_
+#endif  // CONTENT_BROWSER_COMPOSITOR_SOFTWARE_OUTPUT_DEVICE_X11_H_