Remove explicit keyword from multi-argument constructors

remoting/protocol/content_description.h

Index: remoting/protocol/content_description.h
diff --git a/remoting/protocol/content_description.h b/remoting/protocol/content_description.h
index f4cb97b8e947f8ef13904531afaa0a929771c714..678da314ca7eaeb081f6a2e117b2526c6528e275 100644
--- a/remoting/protocol/content_description.h
+++ b/remoting/protocol/content_description.h
@@ -26,10 +26,10 @@ namespace protocol {
 // interface does not need to depend on libjingle.
 class ContentDescription : public cricket::ContentDescription {
  public:
-  explicit ContentDescription(const CandidateSessionConfig* config,
-                              const std::string& auth_token,
-                              const std::string& master_key,
-                              const std::string& certificate);
+  ContentDescription(const CandidateSessionConfig* config,
+                     const std::string& auth_token,
+                     const std::string& master_key,
+                     const std::string& certificate);
   virtual ~ContentDescription();
 
   const CandidateSessionConfig* config() const {