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

mojo/edk/system/remote_consumer_data_pipe_impl.h

Index: mojo/edk/system/remote_consumer_data_pipe_impl.h
diff --git a/mojo/edk/system/remote_consumer_data_pipe_impl.h b/mojo/edk/system/remote_consumer_data_pipe_impl.h
index 4c8e8e842a801c6266e13a65b2b8db2ee639a96c..3c8ff8321b4c90f072a0afb8b87f60f3a7ec482f 100644
--- a/mojo/edk/system/remote_consumer_data_pipe_impl.h
+++ b/mojo/edk/system/remote_consumer_data_pipe_impl.h
@@ -62,7 +62,7 @@ class RemoteConsumerDataPipeImpl final : public DataPipeImpl {
       Channel* channel,
       void* destination,
       size_t* actual_size,
-      std::vector<embedder::ScopedPlatformHandle>* platform_handles) override;
+      std::vector<platform::ScopedPlatformHandle>* platform_handles) override;
   void ConsumerClose() override;
   MojoResult ConsumerReadData(UserPointer<void> elements,
                               UserPointer<uint32_t> num_bytes,
@@ -85,7 +85,7 @@ class RemoteConsumerDataPipeImpl final : public DataPipeImpl {
       Channel* channel,
       void* destination,
       size_t* actual_size,
-      std::vector<embedder::ScopedPlatformHandle>* platform_handles) override;
+      std::vector<platform::ScopedPlatformHandle>* platform_handles) override;
   bool OnReadMessage(unsigned port, MessageInTransit* message) override;
   void OnDetachFromChannel(unsigned port) override;