[Presentation API] Move Presentation API structs to public/common

content/public/common/presentation_session.h

Index: content/public/common/presentation_session.h
diff --git a/content/public/browser/presentation_session.h b/content/public/common/presentation_session.h
similarity index 91%
rename from content/public/browser/presentation_session.h
rename to content/public/common/presentation_session.h
index 8e5eb54676d349921ea4872aa2c93fd359a0a9dd..87bafb4b140cc45bf33603184280263f287c86db 100644
--- a/content/public/browser/presentation_session.h
+++ b/content/public/common/presentation_session.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_PRESENTATION_SESSION_H_
-#define CONTENT_PUBLIC_BROWSER_PRESENTATION_SESSION_H_
+#ifndef CONTENT_PUBLIC_COMMON_PRESENTATION_SESSION_H_
+#define CONTENT_PUBLIC_COMMON_PRESENTATION_SESSION_H_
 
 #include <string>
 
@@ -59,4 +59,4 @@ struct CONTENT_EXPORT PresentationError {
 
 }  // namespace content
 
-#endif  // CONTENT_PUBLIC_BROWSER_PRESENTATION_SESSION_H_
+#endif  // CONTENT_PUBLIC_COMMON_PRESENTATION_SESSION_H_