InstantExtended: Send search URLs to renderers.

chrome/renderer/media/webrtc_logging_message_filter.cc

Index: chrome/renderer/media/webrtc_logging_message_filter.cc
diff --git a/chrome/renderer/media/webrtc_logging_message_filter.cc b/chrome/renderer/media/webrtc_logging_message_filter.cc
index be4f665286cbefbc9ff9cce3e6efcce3d6501228..39a2e95b5249290963338545bdae166b46f8e07a 100644
--- a/chrome/renderer/media/webrtc_logging_message_filter.cc
+++ b/chrome/renderer/media/webrtc_logging_message_filter.cc
@@ -15,10 +15,13 @@ WebRtcLoggingMessageFilter::WebRtcLoggingMessageFilter(
     : log_message_delegate_(NULL),
       io_message_loop_(io_message_loop),
       channel_(NULL) {
-  io_message_loop_->PostTask(
-      FROM_HERE, base::Bind(
-          &WebRtcLoggingMessageFilter::CreateLoggingHandler,
-          base::Unretained(this)));
+  // May be null in a browsertest using MockRenderThread.
+  if (io_message_loop_) {
+    io_message_loop_->PostTask(
+        FROM_HERE, base::Bind(
+            &WebRtcLoggingMessageFilter::CreateLoggingHandler,
+            base::Unretained(this)));
+  }
 }
 
 WebRtcLoggingMessageFilter::~WebRtcLoggingMessageFilter() {