Towards enabling -Werror in skia on Linux

Review URL: http://codereview.appspot.com/5516044/



git-svn-id: http://skia.googlecode.com/svn/trunk@2983 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/bench/benchmain.cpp b/bench/benchmain.cpp
index 059ec47..024ad0f 100644
--- a/bench/benchmain.cpp
+++ b/bench/benchmain.cpp
@@ -327,7 +327,7 @@
     
     SkString outDir;
     SkBitmap::Config outConfig = SkBitmap::kNo_Config;
-    GLHelper* glHelper;
+    GLHelper* glHelper = NULL;
     const char* configName = "";
     Backend backend = kRaster_Backend;  // for warning
     int configCount = SK_ARRAY_COUNT(gConfigs);