ipc: Remove the ability to override the listener task runner

Since base::ThreadTaskRunnerHandle::Get() is now configured to return
the correct value from the start, there's no need to override the IPC
listener task runner any longer.

BUG=465354

Review URL: https://codereview.chromium.org/1239273002

Cr-Commit-Position: refs/heads/master@{#339629}

1 files changed, 0 insertions, 8 deletions

diff --git a/ipc/ipc_channel_proxy.h b/ipc/ipc_channel_proxy.h
index 73cb7e0..5d1402e 100644
--- a/ipc/ipc_channel_proxy.h
+++ b/ipc/ipc_channel_proxy.h
@@ -144,12 +144,6 @@ class IPC_EXPORT ChannelProxy : public Sender, public base::NonThreadSafe {
   }
 #endif
 
-  // Set the task runner on which dispatched messages are posted. Both the new
-  // task runner and the existing task runner must run on the same thread, and
-  // must belong to the calling thread.
-  void SetListenerTaskRunner(
-    scoped_refptr<base::SingleThreadTaskRunner> listener_task_runner);
-
   // Called to clear the pointer to the IPC task runner when it's going away.
   void ClearIPCTaskRunner();
 
@@ -180,8 +174,6 @@ class IPC_EXPORT ChannelProxy : public Sender, public base::NonThreadSafe {
     Context(Listener* listener,
             const scoped_refptr<base::SingleThreadTaskRunner>& ipc_thread);
     void ClearIPCTaskRunner();
-    void SetListenerTaskRunner(
-      scoped_refptr<base::SingleThreadTaskRunner> listener_task_runner);
     base::SingleThreadTaskRunner* ipc_task_runner() const {
       return ipc_task_runner_.get();
     }