Bug 661472 - fix building with crash reporter disabled. r=dougt

widget/src/android/AndroidJNI.cpp

@@ -158,8 +158,10 @@ Java_org_mozilla_gecko_GeckoAppShell_onChangeNetworkLinkStatus(JNIEnv *jenv, jcl
 NS_EXPORT void JNICALL
 Java_org_mozilla_gecko_GeckoAppShell_reportJavaCrash(JNIEnv *, jclass, jstring stack)
 {
+#ifdef MOZ_CRASHREPORTER
      nsJNIString javaStack(stack);
      CrashReporter::AppendAppNotesToCrashReport(
          NS_ConvertUTF16toUTF8(javaStack));
+#endif
     abort();
 }