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

mojo/edk/embedder/simple_platform_support.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "mojo/edk/embedder/simple_platform_support.h"
 
+#include <utility>
+
 #include "base/rand_util.h"
 #include "base/time/time.h"
 #include "mojo/edk/embedder/simple_platform_shared_buffer.h"
 
+using mojo::platform::ScopedPlatformHandle;
 using mojo::util::RefPtr;
 
 namespace mojo {
 namespace embedder {
 
 MojoTimeTicks SimplePlatformSupport::GetTimeTicksNow() {
   return base::TimeTicks::Now().ToInternalValue();
 }
 
 void SimplePlatformSupport::GetCryptoRandomBytes(void* bytes,
                                                  size_t num_bytes) {
   base::RandBytes(bytes, num_bytes);
 }
 
 RefPtr<PlatformSharedBuffer> SimplePlatformSupport::CreateSharedBuffer(
     size_t num_bytes) {
   return SimplePlatformSharedBuffer::Create(num_bytes);
 }
 
 RefPtr<PlatformSharedBuffer>
 SimplePlatformSupport::CreateSharedBufferFromHandle(
     size_t num_bytes,
     ScopedPlatformHandle platform_handle) {
   return SimplePlatformSharedBuffer::CreateFromPlatformHandle(
-      num_bytes, platform_handle.Pass());
+      num_bytes, std::move(platform_handle));
 }
 
 }  // namespace embedder
 }  // namespace mojo