Fix WebRTC logging so that logs from libpeerconnection make it to the log.

third_party/libjingle/overrides/talk/base/logging.h

Index: third_party/libjingle/overrides/talk/base/logging.h
diff --git a/third_party/libjingle/overrides/talk/base/logging.h b/third_party/libjingle/overrides/talk/base/logging.h
index cbc9317b7ae067835f5aa5214a75d974e3af78ab..a474985ce715fddb59afd7cbd7f23b0ad6f4f3c6 100644
--- a/third_party/libjingle/overrides/talk/base/logging.h
+++ b/third_party/libjingle/overrides/talk/base/logging.h
@@ -151,9 +151,14 @@ void LogMultiline(LoggingSeverity level, const char* label, bool input,
                   const void* data, size_t len, bool hex_mode,
                   LogMultilineState* state);
 
+// TODO(grunell): Change name to InitDiagnosticLoggingDelegate or
+// InitDiagnosticLogging. Change also in init_webrtc.h/cc.
+// TODO(grunell): typedef the delegate function.
 void InitDiagnosticLoggingDelegateFunction(
     void (*delegate)(const std::string&));
 
+void SetExtraLoggingInit(
+    void (*function)(void (*delegate)(const std::string&)));
 }  // namespace talk_base
 
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