SkLazyPtr follow ups

tests/LazyPtr.cpp

-#include "Test.h"
-#include "SkLazyPtr.h"
-#include "SkTaskGroup.h"
-
-DEF_TEST(LazyPtr, r) {
-    SkLazyPtr<int> lazy;
-    int* ptr = lazy.get();
-
-    REPORTER_ASSERT(r, ptr);
-    REPORTER_ASSERT(r, lazy.get() == ptr);
-
-    SkLazyPtr<double> neverRead;
-}
-
-namespace {
-
-struct Racer : public SkRunnable {
-    Racer() : fLazy(NULL), fSeen(NULL) {}
-
-    virtual void run() SK_OVERRIDE { fSeen = fLazy->get(); }
-
-    SkLazyPtr<int>* fLazy;
-    int* fSeen;
-};
-
-} // namespace
-
-DEF_TEST(LazyPtr_Threaded, r) {
-    static const int kRacers = 321;
-
-    SkLazyPtr<int> lazy;
-
-    Racer racers[kRacers];
-    for (int i = 0; i < kRacers; i++) {
-        racers[i].fLazy = &lazy;
-    }
-
-    SkTaskGroup tg;
-    for (int i = 0; i < kRacers; i++) {
-        tg.add(racers + i);
-    }
-    tg.wait();
-
-    for (int i = 1; i < kRacers; i++) {
-        REPORTER_ASSERT(r, racers[i].fSeen);
-        REPORTER_ASSERT(r, racers[i].fSeen == racers[0].fSeen);
-    }
-}