Split mojo_system dylib into public and private

mojo/system/channel.h

 // Copyright 2013 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.
 
 #ifndef MOJO_SYSTEM_CHANNEL_H_
 #define MOJO_SYSTEM_CHANNEL_H_
 
 #include <stdint.h>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/containers/hash_tables.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/string_piece.h"
 #include "base/synchronization/lock.h"
 #include "base/threading/thread_checker.h"
 #include "mojo/public/system/core.h"
-#include "mojo/public/system/system_export.h"
 #include "mojo/system/message_in_transit.h"
 #include "mojo/system/message_pipe.h"
 #include "mojo/system/raw_channel.h"
+#include "mojo/system/system_impl_export.h"
 
 namespace base {
 class MessageLoop;
 }
 
 namespace mojo {
 namespace system {
 
 // This class is mostly thread-safe. It must be created on an "I/O thread" (see
 // raw_channel.h). |Init()| must be called on that same thread before it becomes
@@ skipping 12 matching lines @@
 // |local_id_to_endpoint_info_map_|) under |Channel::lock_| and then release the
 // lock.
 //
 // Also, care must be taken with respect to references: While a |Channel| has
 // references to |MessagePipe|s, |MessagePipe|s (via |ProxyMessagePipeEndpoint|)
 // may also have references to |Channel|s. These references are set up by
 // calling |AttachMessagePipeEndpoint()|. The reference to |MessagePipe| owned
 // by |Channel| must be removed by calling |DetachMessagePipeEndpoint()| (which
 // is done by |MessagePipe|/|ProxyMessagePipeEndpoint|, which simultaneously
 // removes its reference to |Channel|).
-class MOJO_SYSTEM_EXPORT Channel : public base::RefCountedThreadSafe<Channel>,
-                                   public RawChannel::Delegate {
+class MOJO_SYSTEM_IMPL_EXPORT Channel
+    : public base::RefCountedThreadSafe<Channel>,
+      public RawChannel::Delegate {
  public:
   // The first message pipe endpoint attached will have this as its local ID.
   static const MessageInTransit::EndpointId kBootstrapEndpointId = 1;
 
   Channel();
 
   // This must be called on the creation thread before any other methods are
   // called, and before references to this object are given to any other
   // threads. Takes ownership of |handle|. Returns true on success. On failure,
   // no other methods should be called (including |Shutdown()|).
@@ skipping 66 matching lines @@
   // be checked for existence before use.
   MessageInTransit::EndpointId next_local_id_;
 
   DISALLOW_COPY_AND_ASSIGN(Channel);
 };
 
 }  // namespace system
 }  // namespace mojo
 
 #endif  // MOJO_SYSTEM_CHANNEL_H_