Move mojo edk into mojo/edk

mojo/edk/embedder/platform_handle.h

Index: mojo/edk/embedder/platform_handle.h
diff --git a/mojo/embedder/platform_handle.h b/mojo/edk/embedder/platform_handle.h
similarity index 83%
rename from mojo/embedder/platform_handle.h
rename to mojo/edk/embedder/platform_handle.h
index 39da4a9624965abbffd83e19685544e9bcc2c218..346301a237167d99b04d4f65acb3be36dd9bd182 100644
--- a/mojo/embedder/platform_handle.h
+++ b/mojo/edk/embedder/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_EMBEDDER_PLATFORM_HANDLE_H_
-#define MOJO_EMBEDDER_PLATFORM_HANDLE_H_
+#ifndef MOJO_EDK_EMBEDDER_PLATFORM_HANDLE_H_
+#define MOJO_EDK_EMBEDDER_PLATFORM_HANDLE_H_
 
 #include "build/build_config.h"
-#include "mojo/system/system_impl_export.h"
+#include "mojo/edk/system/system_impl_export.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
@@ -44,4 +44,4 @@ struct MOJO_SYSTEM_IMPL_EXPORT PlatformHandle {
 }  // namespace embedder
 }  // namespace mojo
 
-#endif  // MOJO_EMBEDDER_PLATFORM_HANDLE_H_
+#endif  // MOJO_EDK_EMBEDDER_PLATFORM_HANDLE_H_