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/src/gpu/GrDrawState.h b/src/gpu/GrDrawState.h
index dfe0d4b..4191c4a 100644
--- a/src/gpu/GrDrawState.h
+++ b/src/gpu/GrDrawState.h
@@ -403,7 +403,7 @@
 
     class AutoRenderTargetRestore : public ::GrNoncopyable {
     public:
-        AutoRenderTargetRestore() : fDrawState(NULL) {}
+        AutoRenderTargetRestore() : fDrawState(NULL), fSavedTarget(NULL) {}
         AutoRenderTargetRestore(GrDrawState* ds, GrRenderTarget* newTarget) {
             fDrawState = NULL;
             this->set(ds, newTarget);