Bug 959333 - HTTP/2 should say so in the status line. r=mcmanus

netwerk/base/src/Dashboard.cpp

@@ -501,6 +501,9 @@ HttpConnInfo::SetHTTP1ProtocolVersion(uint8_t pv)
     case NS_HTTP_VERSION_1_1:
         protocolVersion.Assign(NS_LITERAL_STRING("http/1.1"));
         break;
+    case NS_HTTP_VERSION_2_0:
+        protocolVersion.Assign(NS_LITERAL_STRING("http/2.0"));
+        break;
     default:
         protocolVersion.Assign(NS_LITERAL_STRING("unknown protocol version"));
     }

netwerk/protocol/http/Http2Compression.cpp

@@ -411,7 +411,7 @@ Http2Decompressor::OutputHeader(const nsACString &name, const nsACString &value)
 
   // Status comes first
   if (name.Equals(NS_LITERAL_CSTRING(":status"))) {
-    nsAutoCString status(NS_LITERAL_CSTRING("HTTP/1.1 "));
+    nsAutoCString status(NS_LITERAL_CSTRING("HTTP/2.0 "));
     status.Append(value);
     status.Append(NS_LITERAL_CSTRING("\r\n"));
     mOutput->Insert(status, 0);

netwerk/protocol/http/nsHttp.h

@@ -17,6 +17,7 @@
 #define NS_HTTP_VERSION_0_9      9
 #define NS_HTTP_VERSION_1_0     10
 #define NS_HTTP_VERSION_1_1     11
+#define NS_HTTP_VERSION_2_0     20
 
 namespace mozilla {
 

netwerk/protocol/http/nsHttpResponseHead.cpp

@@ -55,7 +55,9 @@ nsHttpResponseHead::Flatten(nsACString &buf, bool pruneTransients)
         return;
 
     buf.AppendLiteral("HTTP/");
-    if (mVersion == NS_HTTP_VERSION_1_1)
+    if (mVersion == NS_HTTP_VERSION_2_0)
+        buf.AppendLiteral("2.0 ");
+    else if (mVersion == NS_HTTP_VERSION_1_1)
         buf.AppendLiteral("1.1 ");
     else
         buf.AppendLiteral("1.0 ");
@@ -766,7 +768,9 @@ nsHttpResponseHead::ParseVersion(const char *str)
     int major = atoi(str + 1);
     int minor = atoi(p);
 
-    if ((major > 1) || ((major == 1) && (minor >= 1)))
+    if ((major > 2) || ((major == 2) && (minor >= 0)))
+        mVersion = NS_HTTP_VERSION_2_0;
+    else if ((major == 1) && (minor >= 1))
         // at least HTTP/1.1
         mVersion = NS_HTTP_VERSION_1_1;
     else