EDK: Move {platform_handle,scoped_platform_handle}.* to //mojo/edk/platform.

mojo/edk/platform/platform_handle.h

Index: mojo/edk/platform/platform_handle.h
diff --git a/mojo/edk/embedder/platform_handle.h b/mojo/edk/platform/platform_handle.h
similarity index 71%
rename from mojo/edk/embedder/platform_handle.h
rename to mojo/edk/platform/platform_handle.h
index 60352947ba60fec6bb900135ed44d8ae5dd25025..e959a8da5a67749d5edf0724ac8b177545bcddd4 100644
--- a/mojo/edk/embedder/platform_handle.h
+++ b/mojo/edk/platform/platform_handle.h
@@ -2,11 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef MOJO_EDK_EMBEDDER_PLATFORM_HANDLE_H_
-#define MOJO_EDK_EMBEDDER_PLATFORM_HANDLE_H_
+#ifndef MOJO_EDK_PLATFORM_PLATFORM_HANDLE_H_
+#define MOJO_EDK_PLATFORM_PLATFORM_HANDLE_H_
 
 namespace mojo {
-namespace embedder {
+namespace platform {
 
 // A |PlatformHandle| is just a file descriptor on POSIX.
 struct PlatformHandle {
@@ -20,7 +20,7 @@ struct PlatformHandle {
   int fd;
 };
 
-}  // namespace embedder
+}  // namespace platform
 }  // namespace mojo
 
-#endif  // MOJO_EDK_EMBEDDER_PLATFORM_HANDLE_H_
+#endif  // MOJO_EDK_PLATFORM_PLATFORM_HANDLE_H_