Move mojo edk into mojo/edk

This creates a mojo/edk directory which contains the "embedder developer
kit" aka the set of code needed to embed mojo code.

mojo/edk/embedder = code from mojo/embedder
mojo/edk/system = code from mojo/system
mojo/edk/test = code used to test the previous two, from mojo/common/test

mojo/edk/ can only depend on mojo/public/, base/ and itself.

R=viettrungluu@chromium.org
TBR=sky@chromium.org for file renames

Committed: https://chromium.googlesource.com/chromium/src/+/ee7ff197a98da4636f33bd713de784948b487bd4

Review URL: https://codereview.chromium.org/621153003

Cr-Commit-Position: refs/heads/master@{#297986}


CrOS-Libchrome-Original-Commit: a03ae49d253d7d1f517e2f92146a6ba201c78aa6
diff --git a/ipc/mojo/ipc_mojo_bootstrap.cc b/ipc/mojo/ipc_mojo_bootstrap.cc
index 0082fb8..1b50b3f 100644
--- a/ipc/mojo/ipc_mojo_bootstrap.cc
+++ b/ipc/mojo/ipc_mojo_bootstrap.cc
@@ -8,7 +8,7 @@
 #include "base/process/process_handle.h"
 #include "ipc/ipc_message_utils.h"
 #include "ipc/ipc_platform_file.h"
-#include "mojo/embedder/platform_channel_pair.h"
+#include "mojo/edk/embedder/platform_channel_pair.h"
 
 namespace IPC {