Small fixes for unused argument warnings w/ Makefile.standalone "sb" target.

BUG=none
R=jpp@chromium.org, kschimpf@google.com

Review URL: https://codereview.chromium.org/1219883003.
diff --git a/src/IceBrowserCompileServer.cpp b/src/IceBrowserCompileServer.cpp
index d2654e3..5a5b970 100644
--- a/src/IceBrowserCompileServer.cpp
+++ b/src/IceBrowserCompileServer.cpp
@@ -101,6 +101,7 @@
 
 void fatalErrorHandler(void *UserData, const std::string &Reason,
                        bool GenCrashDialog) {
+  (void)GenCrashDialog;
   BrowserCompileServer *Server =
       reinterpret_cast<BrowserCompileServer *>(UserData);
   Server->setFatalError(Reason);
diff --git a/src/main.cpp b/src/main.cpp
index 50556f6..c5ee1e4 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -24,6 +24,7 @@
   // There are no real commandline arguments in the browser case.
   // They are supplied via IPC.
   assert(argc == 1);
+  (void)argc;
   (void)argv;
   Ice::BrowserCompileServer Server(Comp);
   Server.run();