Update include/utils/KeyedVector.h

I got this error in the build:
frameworks/base/include/utils/KeyedVector.h:193:31: note: declarations in dependent base ‘android::KeyedVector<android::String16, unsigned int>’ are not found by unqualified lookup frameworks/base/include/utils/KeyedVector.h:193:31: note: use ‘this->indexOfKey’ instead make: *** [/home/duffieldj1/LGE-CyanMobile/out/host/linux-x86/obj/EXECUTABLES/aapt_intermediates/Command.o] Error 1

So I replaced the line @ space 33 like it said and then I got another error, so I deleted that section and now the build is continuing but I don't know what deleting that will do to the build so please review

Edited Lines Backup:

template<typename KEY, typename VALUE> inline
const VALUE& DefaultKeyedVector<KEY,VALUE>::valueFor(const KEY& key) const {
    ssize_t i = indexOfKey(key);
    return i >= 0 ? KeyedVector<KEY,VALUE>::valueAt(i) : mDefault;
}