Remove the dependency to ws2_32.dll from talk_base::ThreadManager and talk_base::Thread.

third_party/libjingle/overrides/talk/base/messagequeue.cc

Index: third_party/libjingle/overrides/talk/base/messagequeue.cc
===================================================================
--- third_party/libjingle/overrides/talk/base/messagequeue.cc	(revision 124023)
+++ third_party/libjingle/overrides/talk/base/messagequeue.cc	(working copy)
@@ -34,6 +34,7 @@
 #endif
 
 #include "talk/base/common.h"
+#include "talk/base/event.h"
 #include "talk/base/logging.h"
 #include "talk/base/messagequeue.h"
 #include "talk/base/physicalsocketserver.h"
@@ -44,6 +45,34 @@
 const uint32 kMaxMsgLatency = 150;  // 150 ms
 
 //------------------------------------------------------------------
+// NullSocketServer
+
+class NullSocketServer : public SocketServer {

[Sergey Ulanov, 2012/02/28 21:54:02]

should this be in an anonymous namespace?

[Ronghua Wu (Left Chromium), 2012/02/28 23:16:57]

Done.

+ public:
+   NullSocketServer() : event_(false, false) { }
+
+  virtual bool Wait(int cms, bool process_io) {
+    return event_.Wait(kForever);
+  }
+
+  virtual void WakeUp() {
+    event_.Set();
+  }
+
+  virtual Socket* CreateSocket(int type) {
+    return NULL;
+  }
+
+  // Returns a new socket for nonblocking communication.  The type can be
+  // SOCK_DGRAM and/or SOCK_STREAM.
+  virtual AsyncSocket* CreateAsyncSocket(int type) {
+    return NULL;
+  }
+ private:

[Sergey Ulanov, 2012/02/28 21:54:02]

nit: empty line before this one.

[Ronghua Wu (Left Chromium), 2012/02/28 23:16:57]

Done.

+  Event event_;
+};
+
+//------------------------------------------------------------------
 // MessageQueueManager
 
 MessageQueueManager* MessageQueueManager::instance_;
@@ -105,18 +134,30 @@
 //------------------------------------------------------------------
 // MessageQueue
 
-MessageQueue::MessageQueue(SocketServer* ss)
-    : ss_(ss), fStop_(false), fPeekKeep_(false), active_(false),
-      dmsgq_next_num_(0) {
-  if (!ss_) {
-    // Currently, MessageQueue holds a socket server, and is the base class for
-    // Thread.  It seems like it makes more sense for Thread to hold the socket
-    // server, and provide it to the MessageQueue, since the Thread controls
-    // the I/O model, and MQ is agnostic to those details.  Anyway, this causes
-    // messagequeue_unittest to depend on network libraries... yuck.
-    default_ss_.reset(new PhysicalSocketServer());
-    ss_ = default_ss_.get();
+MessageQueue::MessageQueue() {
+  // TODO(ronghuawu):
+  // Currently, MessageQueue holds a socket server, and is the base class for
+  // Thread.  It seems like it makes more sense for Thread to hold the socket
+  // server, and provide it to the MessageQueue, since the Thread controls
+  // the I/O model, and MQ is agnostic to those details.  Anyway, this causes
+  // messagequeue_unittest to depend on network libraries... yuck.
+  default_ss_.reset(new PhysicalSocketServer());
+  Construct();
+}
+
+MessageQueue::MessageQueue(SocketServer* ss) {
+  if (!ss) {
+    default_ss_.reset(new NullSocketServer());

[Sergey Ulanov, 2012/02/28 21:54:02]

here we lose |ss| if it is set.

[Ronghua Wu (Left Chromium), 2012/02/28 23:16:57]

Done.

   }
+  Construct();
+}
+
+void MessageQueue::Construct() {
+  fStop_ = false;
+  fPeekKeep_ = false;
+  active_ = false;
+  dmsgq_next_num_ = 0;
+  ss_ = default_ss_.get();
   ss_->SetMessageQueue(this);
 }