Make use_aura set use_default_render_theme and moves

webkit/glue/webthemeengine_impl_default.h

Index: webkit/glue/webthemeengine_impl_default.h
diff --git a/webkit/glue/webthemeengine_impl_linux.h b/webkit/glue/webthemeengine_impl_default.h
similarity index 78%
rename from webkit/glue/webthemeengine_impl_linux.h
rename to webkit/glue/webthemeengine_impl_default.h
index 2156f36a6e253722a98d2486a5329e03bd176251..24b75ae9b482e96adccfbf2b738738e078d817cb 100644
--- a/webkit/glue/webthemeengine_impl_linux.h
+++ b/webkit/glue/webthemeengine_impl_default.h
@@ -2,10 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef WEBKIT_GLUE_WEBTHEMEENGINE_IMPL_LINUX_H_
-#define WEBKIT_GLUE_WEBTHEMEENGINE_IMPL_LINUX_H_
+#ifndef WEBKIT_GLUE_WEBTHEMEENGINE_IMPL_DEFAULT_H_
+#define WEBKIT_GLUE_WEBTHEMEENGINE_IMPL_DEFAULT_H_
 
-#include "third_party/WebKit/Source/WebKit/chromium/public/platform/linux/WebThemeEngine.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/platform/default/WebThemeEngine.h"
 
 namespace webkit_glue {
 
@@ -23,4 +23,4 @@ class WebThemeEngineImpl : public WebKit::WebThemeEngine {
 
 }  // namespace webkit_glue
 
-#endif  // WEBKIT_GLUE_WEBTHEMEENGINE_IMPL_LINUX_H_
+#endif  // WEBKIT_GLUE_WEBTHEMEENGINE_IMPL_DEFAULT_H_