Clean-up inline members of nested classes (ipc/)

Due to a bug, the Clang-plugin style checker failed to warn about
inline constructors, destructors, non-empty virtual methods, etc.
for nested classes.

The plugin has been fixed, and this patch is part of a clean-up of all
the code that now causes the plugin to issue errors.

BUG=139346


Review URL: https://chromiumcodereview.appspot.com/10825275

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@150891 0039d316-1c4b-4281-b951-d872f2087c98

ipc/ipc_channel_proxy.cc

@@ -173,6 +173,10 @@ void ChannelProxy::Context::OnChannelClosed() {
   Release();
 }
 
+void ChannelProxy::Context::Clear() {
+  listener_ = NULL;
+}
+
 // Called on the IPC::Channel thread
 void ChannelProxy::Context::OnSendMessage(scoped_ptr<Message> message) {
   if (!channel_.get()) {

ipc/ipc_channel_proxy.h

@@ -226,7 +226,7 @@ class IPC_EXPORT ChannelProxy : public Sender {
     // Called on the consumers thread when the ChannelProxy is closed.  At that
     // point the consumer is telling us that they don't want to receive any
     // more messages, so we honor that wish by forgetting them!
-    virtual void Clear() { listener_ = NULL; }
+    virtual void Clear();
 
    private:
     friend class ChannelProxy;