Cleanup: Fix content header include guards.

content/public/browser/render_widget_host_view_frame_subscriber.h

Index: content/public/browser/render_widget_host_view_frame_subscriber.h
diff --git a/content/public/browser/render_widget_host_view_frame_subscriber.h b/content/public/browser/render_widget_host_view_frame_subscriber.h
index 0b24ea1a9be252b5d974a700cf34c59d079a7aee..e29bf15c1043684a25dcd84704df7371b7fbf5a5 100644
--- a/content/public/browser/render_widget_host_view_frame_subscriber.h
+++ b/content/public/browser/render_widget_host_view_frame_subscriber.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CONTENT_PORT_BROWSER_RENDER_WIDGET_HOST_VIEW_FRAME_SUBSCRIBER_H_
-#define CONTENT_PORT_BROWSER_RENDER_WIDGET_HOST_VIEW_FRAME_SUBSCRIBER_H_
+#ifndef CONTENT_PUBLIC_BROWSER_RENDER_WIDGET_HOST_VIEW_FRAME_SUBSCRIBER_H_
+#define CONTENT_PUBLIC_BROWSER_RENDER_WIDGET_HOST_VIEW_FRAME_SUBSCRIBER_H_
 
 #include "base/callback.h"
 #include "base/time/time.h"
@@ -69,4 +69,4 @@ class RenderWidgetHostViewFrameSubscriber {
 
 }  // namespace content
 
-#endif  // CONTENT_PORT_BROWSER_RENDER_WIDGET_HOST_VIEW_FRAME_SUBSCRIBER_H_
+#endif  // CONTENT_PUBLIC_BROWSER_RENDER_WIDGET_HOST_VIEW_FRAME_SUBSCRIBER_H_