Move MinPositive to call.h

webrtc/media/base/mediachannel.h

Index: webrtc/media/base/mediachannel.h
diff --git a/webrtc/media/base/mediachannel.h b/webrtc/media/base/mediachannel.h
index 40869594e58956c2d3edc34ad5303732b318800a..a2106a2778cd87d160aba439de3ff1d07d0fa7ae 100644
--- a/webrtc/media/base/mediachannel.h
+++ b/webrtc/media/base/mediachannel.h
@@ -11,7 +11,6 @@
 #ifndef WEBRTC_MEDIA_BASE_MEDIACHANNEL_H_
 #define WEBRTC_MEDIA_BASE_MEDIACHANNEL_H_
 
-#include <algorithm>
 #include <memory>
 #include <string>
 #include <vector>
@@ -81,17 +80,6 @@ static std::string VectorToString(const std::vector<T>& vals) {
     return ost.str();
 }
 
-template <typename T>
-static T MinPositive(T a, T b) {
-  if (a <= 0) {
-    return b;
-  }
-  if (b <= 0) {
-    return a;
-  }
-  return std::min(a, b);
-}
-
 // Construction-time settings, passed on when creating
 // MediaChannels.
 struct MediaConfig {