265333 don't explicitly pass all arguments to NS_NewInputStreamChannel, so that the

more efficient variant with fewer arguments can be used r+sr=darin

dom/src/jsurl/nsJSProtocolHandler.cpp

@@ -400,8 +400,7 @@ nsresult nsJSChannel::Init(nsIURI *aURI)
     // If the resultant script evaluation actually does return a value, we
     // treat it as html.
     rv = NS_NewInputStreamChannel(getter_AddRefs(channel), aURI, mIOThunk,
-                                  NS_LITERAL_CSTRING("text/html"),
-                                  EmptyCString());
+                                  NS_LITERAL_CSTRING("text/html"));
     if (NS_FAILED(rv)) return rv;
 
     rv = mIOThunk->Init(aURI);

mailnews/base/src/nsMessenger.cpp

@@ -1112,14 +1112,10 @@ nsMessenger::SaveAs(const char *aURI, PRBool aAsFile, nsIMsgIdentity *aIdentity,
       if (NS_FAILED(rv)) 
         goto done;
       
-      const nsAFlatCString& empty = EmptyCString();
-
       saveListener->m_channel = nsnull;
       rv = NS_NewInputStreamChannel(getter_AddRefs(saveListener->m_channel),
         url, 
-        nsnull,                 // inputStream
-        empty,                  // contentType
-        empty);                 // contentCharset
+        nsnull);                // inputStream
       NS_ASSERTION(NS_SUCCEEDED(rv), "NS_NewInputStreamChannel failed");
       if (NS_FAILED(rv)) 
         goto done;

netwerk/protocol/about/src/nsAboutBlank.cpp

@@ -57,8 +57,7 @@ nsAboutBlank::NewChannel(nsIURI *aURI, nsIChannel **result)
     if (NS_FAILED(rv)) return rv;
 
     rv = NS_NewInputStreamChannel(&channel, aURI, in,
-                                  NS_LITERAL_CSTRING("text/html"), 
-                                  EmptyCString());
+                                  NS_LITERAL_CSTRING("text/html"));
     if (NS_FAILED(rv)) return rv;
 
     *result = channel;

netwerk/protocol/about/src/nsAboutBloat.cpp

@@ -148,8 +148,7 @@ nsAboutBloat::NewChannel(nsIURI *aURI, nsIChannel **result)
 
     nsIChannel* channel;
     rv = NS_NewInputStreamChannel(&channel, aURI, inStr,
-                                  NS_LITERAL_CSTRING("text/plain"),
-                                  EmptyCString());
+                                  NS_LITERAL_CSTRING("text/plain"));
     if (NS_FAILED(rv)) return rv;
 
     *result = channel;

netwerk/protocol/about/src/nsAboutCache.cpp

@@ -145,8 +145,7 @@ nsAboutCache::NewChannel(nsIURI *aURI, nsIChannel **result)
 
     nsIChannel* channel;
     rv = NS_NewInputStreamChannel(&channel, aURI, inStr,
-                                  NS_LITERAL_CSTRING("text/html"),
-                                  EmptyCString());
+                                  NS_LITERAL_CSTRING("text/html"));
     if (NS_FAILED(rv)) return rv;
 
     *result = channel;

netwerk/streamconv/converters/nsFTPDirListingConv.cpp

@@ -114,8 +114,7 @@ nsFTPDirListingConv::AsyncConvertData(const char *aFromType, const char *aToType
     rv = NS_NewInputStreamChannel(&mPartChannel,
                                   uri,
                                   nsnull,
-                                  NS_LITERAL_CSTRING(APPLICATION_HTTP_INDEX_FORMAT),
-                                  EmptyCString());
+                                  NS_LITERAL_CSTRING(APPLICATION_HTTP_INDEX_FORMAT));
     NS_RELEASE(uri);
     if (NS_FAILED(rv)) return rv;
 

netwerk/streamconv/converters/nsGopherDirListingConv.cpp

@@ -149,8 +149,7 @@ nsGopherDirListingConv::AsyncConvertData(const char *aFromType,
     rv = NS_NewInputStreamChannel(&mPartChannel,
                                   mUri,
                                   nsnull,
-                                  NS_LITERAL_CSTRING(APPLICATION_HTTP_INDEX_FORMAT),
-                                  EmptyCString());
+                                  NS_LITERAL_CSTRING(APPLICATION_HTTP_INDEX_FORMAT));
     if (NS_FAILED(rv)) return rv;
 
     return NS_OK;

netwerk/test/TestStreamChannel.cpp

@@ -215,11 +215,8 @@ RunTest(nsIFile *file)
     if (uri)
         uri->SetSpec(NS_LITERAL_CSTRING("foo://bar"));
 
-    const nsAFlatCString& empty = EmptyCString();
-
     nsCOMPtr<nsIChannel> chan;
-    rv = NS_NewInputStreamChannel(getter_AddRefs(chan), uri, stream, empty,
-				  empty);
+    rv = NS_NewInputStreamChannel(getter_AddRefs(chan), uri, stream);
     if (NS_FAILED(rv)) return rv;
 
     rv = chan->SetNotificationCallbacks(new MyCallbacks());

rdf/base/src/nsRDFXMLParser.cpp

@@ -147,8 +147,7 @@ nsRDFXMLParser::ParseString(nsIRDFDataSource* aSink, nsIURI* aBaseURI, const nsA
 
     nsCOMPtr<nsIChannel> channel;
     rv = NS_NewInputStreamChannel(getter_AddRefs(channel), aBaseURI, stream,
-                                  NS_LITERAL_CSTRING("text/xml"),
-                                  EmptyCString());
+                                  NS_LITERAL_CSTRING("text/xml"));
     if (NS_FAILED(rv)) return rv;
 
     listener->OnStartRequest(channel, nsnull);