Extensions: Move cast_channel and hid APIs to extensions/.

extensions/browser/api/cast_channel/cast_message_util.h

Index: extensions/browser/api/cast_channel/cast_message_util.h
diff --git a/chrome/browser/extensions/api/cast_channel/cast_message_util.h b/extensions/browser/api/cast_channel/cast_message_util.h
similarity index 82%
rename from chrome/browser/extensions/api/cast_channel/cast_message_util.h
rename to extensions/browser/api/cast_channel/cast_message_util.h
index e270d8236a8121332446d60d6dde32df6624cd77..5fea9fd23aa8b56d7ee3b918b31a7279c9c078ec 100644
--- a/chrome/browser/extensions/api/cast_channel/cast_message_util.h
+++ b/extensions/browser/api/cast_channel/cast_message_util.h
@@ -2,13 +2,13 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CHROME_BROWSER_EXTENSIONS_API_CAST_CHANNEL_CAST_MESSAGE_UTIL_H_
-#define CHROME_BROWSER_EXTENSIONS_API_CAST_CHANNEL_CAST_MESSAGE_UTIL_H_
+#ifndef EXTENSIONS_BROWSER_API_CAST_CHANNEL_CAST_MESSAGE_UTIL_H_
+#define EXTENSIONS_BROWSER_API_CAST_CHANNEL_CAST_MESSAGE_UTIL_H_
 
 #include <string>
 
 namespace extensions {
-namespace api {
+namespace core_api {
 namespace cast_channel {
 
 class CastMessage;
@@ -36,7 +36,7 @@ void CreateAuthChallengeMessage(CastMessage* message_proto);
 bool IsAuthMessage(const CastMessage& message);
 
 }  // namespace cast_channel
-}  // namespace api
+}  // namespace core_api
 }  // namespace extensions
 
-#endif  // CHROME_BROWSER_EXTENSIONS_API_CAST_CHANNEL_CAST_MESSAGE_UTIL_H_
+#endif  // EXTENSIONS_BROWSER_API_CAST_CHANNEL_CAST_MESSAGE_UTIL_H_