Revert "Move mojo edk into mojo/edk"

ipc/mojo/ipc_channel_mojo_unittest.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 "ipc/mojo/ipc_channel_mojo.h"
 
 #include "base/base_paths.h"
 #include "base/files/file.h"
 #include "base/message_loop/message_loop.h"
 #include "base/path_service.h"
@@ skipping 221 matching lines @@
 }
 
 TEST_F(IPCChannelMojoErrorTest, SendFailWithPendingMessages) {
   Init("IPCChannelMojoErraticTestClient");
 
   // Set up IPC channel and start client.
   ListenerExpectingErrors listener;
   CreateChannel(&listener);
   ASSERT_TRUE(ConnectChannel());
 
-  // This matches a value in mojo/edk/system/constants.h
+  // This matches a value in mojo/system/constants.h
   const int kMaxMessageNumBytes = 4 * 1024 * 1024;
   std::string overly_large_data(kMaxMessageNumBytes, '*');
   // This messages are queued as pending.
   for (size_t i = 0; i < 10; ++i) {
     IPC::TestChannelListener::SendOneMessage(
         sender(), overly_large_data.c_str());
   }
 
   ASSERT_TRUE(StartClient());
   base::MessageLoop::current()->Run();
@@ skipping 88 matching lines @@
   client.Connect();
   listener.set_sender(client.channel());
 
   base::MessageLoop::current()->Run();
 
   return 0;
 }
 #endif
 
 }  // namespace