[ScreenOrientation] Hide ScreenOrientationProvider inside WebContentsImpl.

content/browser/screen_orientation/screen_orientation_provider.h

Index: content/browser/screen_orientation/screen_orientation_provider.h
diff --git a/content/public/browser/screen_orientation_provider.h b/content/browser/screen_orientation/screen_orientation_provider.h
similarity index 92%
rename from content/public/browser/screen_orientation_provider.h
rename to content/browser/screen_orientation/screen_orientation_provider.h
index 78cbe554f86ecde59b7a8b8ba74147b61320e94f..0898070e3bb9471d3fee37c606deb4faf5e85720 100644
--- a/content/public/browser/screen_orientation_provider.h
+++ b/content/browser/screen_orientation/screen_orientation_provider.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_PUBLIC_BROWSER_SCREEN_ORIENTATION_PROVIDER_H_
-#define CONTENT_PUBLIC_BROWSER_SCREEN_ORIENTATION_PROVIDER_H_
+#ifndef CONTENT_BROWSER_SCREEN_ORIENTATION_SCREEN_ORIENTATION_PROVIDER_H_
+#define CONTENT_BROWSER_SCREEN_ORIENTATION_SCREEN_ORIENTATION_PROVIDER_H_
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
@@ -80,6 +80,6 @@ class CONTENT_EXPORT ScreenOrientationProvider
   DISALLOW_COPY_AND_ASSIGN(ScreenOrientationProvider);
 };
 
-} // namespace content
+}  // namespace content
 
-#endif  // CONTENT_PUBLIC_BROWSER_SCREEN_ORIENTATION_PROVIDER_H_
+#endif  // CONTENT_BROWSER_SCREEN_ORIENTATION_SCREEN_ORIENTATION_PROVIDER_H_