FBTF: Move virtual methods to implementation files.

ipc/ipc_channel_proxy.cc

Index: ipc/ipc_channel_proxy.cc
diff --git a/ipc/ipc_channel_proxy.cc b/ipc/ipc_channel_proxy.cc
index ddf1ec8fb2d72e303443535b56de8ef2f212b137..903a71d4d347255251bcf6972f2b3ed6c77ed0e2 100644
--- a/ipc/ipc_channel_proxy.cc
+++ b/ipc/ipc_channel_proxy.cc
@@ -36,6 +36,28 @@ class SendTask : public Task {
 
 //------------------------------------------------------------------------------
 
+ChannelProxy::MessageFilter::~MessageFilter() {}
+
+void ChannelProxy::MessageFilter::OnFilterAdded(Channel* channel) {}
+
+void ChannelProxy::MessageFilter::OnFilterRemoved() {}
+
+void ChannelProxy::MessageFilter::OnChannelConnected(int32 peer_pid) {}
+
+void ChannelProxy::MessageFilter::OnChannelError() {}
+
+void ChannelProxy::MessageFilter::OnChannelClosing() {}
+
+bool ChannelProxy::MessageFilter::OnMessageReceived(const Message& message) {
+  return false;
+}
+
+void ChannelProxy::MessageFilter::OnDestruct() {
+  delete this;
+}
+
+//------------------------------------------------------------------------------
+
 ChannelProxy::Context::Context(Channel::Listener* listener,
                                MessageFilter* filter,
                                MessageLoop* ipc_message_loop)
@@ -248,6 +270,10 @@ ChannelProxy::ChannelProxy(const std::string& channel_id, Channel::Mode mode,
   Init(channel_id, mode, ipc_thread, create_pipe_now);
 }
 
+ChannelProxy::~ChannelProxy() {
+  Close();
+}
+
 void ChannelProxy::Init(const std::string& channel_id, Channel::Mode mode,
                         MessageLoop* ipc_thread_loop, bool create_pipe_now) {
   if (create_pipe_now) {