add getBounds to SkTypeface

include/core/SkLazyPtr.h

Index: include/core/SkLazyPtr.h
diff --git a/src/core/SkLazyPtr.h b/include/core/SkLazyPtr.h
similarity index 98%
rename from src/core/SkLazyPtr.h
rename to include/core/SkLazyPtr.h
index 7273079252a7f89e8ea22c78d9ed620ec31303ac..896dfbf88d762570545a9e5a7715aeeb795313e9 100644
--- a/src/core/SkLazyPtr.h
+++ b/include/core/SkLazyPtr.h
@@ -147,19 +147,19 @@ public:
     SkLazyPtr() : fPtr(NULL) {}
     ~SkLazyPtr() { if (fPtr) { Destroy((T*)fPtr); } }
 
-    T* get() {
+    T* get() const {
         T* ptr = (T*)sk_consume_load(&fPtr);
         return ptr ? ptr : Private::try_cas<T*, Destroy>(&fPtr, SkNEW(T));
     }
 
     template <typename Create>
-    T* get(const Create& create) {
+    T* get(const Create& create) const {
         T* ptr = (T*)sk_consume_load(&fPtr);
         return ptr ? ptr : Private::try_cas<T*, Destroy>(&fPtr, create());
     }
 
 private:
-    void* fPtr;
+    mutable void* fPtr;
 };