Make the CancellableSyncSocket non-blocking on Send, and blocking on Receive

base/sync_socket.h

Index: base/sync_socket.h
diff --git a/base/sync_socket.h b/base/sync_socket.h
index 9bf8836d8bf85e39e755241be16060215a21d147..64a61372a0beba57713319a50ff2da35a9bd533f 100644
--- a/base/sync_socket.h
+++ b/base/sync_socket.h
@@ -7,7 +7,7 @@
 #pragma once
 
 // A socket abstraction used for sending and receiving plain
-// data.  Because they are blocking, they can be used to perform
+// data.  Because the receiving is blocking, they can be used to perform
 // rudimentary cross-process synchronization with low latency.
 
 #include "base/basictypes.h"
@@ -77,8 +77,8 @@ class BASE_EXPORT SyncSocket {
 };
 
 // Derives from SyncSocket and adds support for shutting down the socket from
-// another thread while a blocking Receive or Send is being done from the thread
-// that owns the socket.
+// another thread while a blocking Receive or a non-blocking Send is being done

[tommi (sloooow) - chröme, 2012/04/13 10:28:10]

'non-blocking' in this context just makes it confusing.  suggest to not change
this comment.

[no longer working on chromium, 2012/04/13 11:50:50]

Done.

+// from the thread that owns the socket.
 class BASE_EXPORT CancelableSyncSocket : public SyncSocket {
  public:
   CancelableSyncSocket();