Convert all remaining explicit LeakyLazyInstanceTraits users to ::Leaky

base/lazy_instance.h

Index: base/lazy_instance.h
diff --git a/base/lazy_instance.h b/base/lazy_instance.h
index 4ed471a09bf925ce0598ec78521bb5e8f3bcfce0..5ddc002ba9a4f5e0f995032a30c29c8180ff8c11 100644
--- a/base/lazy_instance.h
+++ b/base/lazy_instance.h
@@ -73,11 +73,18 @@ struct DefaultLazyInstanceTraits {
   }
 };
 
+// We pull out some of the functionality into non-templated functions, so we
+// can implement the more complicated pieces out of line in the .cc file.
+namespace internal {
+
 // Use LazyInstance<T>::Leaky for a less-verbose call-site typedef; e.g.:
 // base::LazyInstance<T>::Leaky my_leaky_lazy_instance;
 // instead of:
-// base::LazyInstance<T, LeakyLazyInstanceTraits<T> > my_leaky_lazy_instance;
+// base::LazyInstance<T, base::internal::LeakyLazyInstanceTraits<T> >
+// my_leaky_lazy_instance;
 // (especially when T is MyLongTypeNameImplClientHolderFactory).
+// Only use this internal::-qualified verbose form to extend this traits class
+// (depending on its implementation details).
 template <typename Type>
 struct LeakyLazyInstanceTraits {
   static const bool kRegisterOnExit = false;
@@ -90,10 +97,6 @@ struct LeakyLazyInstanceTraits {
   }
 };
 
-// We pull out some of the functionality into non-templated functions, so we
-// can implement the more complicated pieces out of line in the .cc file.
-namespace internal {
-
 // Our AtomicWord doubles as a spinlock, where a value of
 // kBeingCreatedMarker means the spinlock is being held for creation.
 static const subtle::AtomicWord kLazyInstanceStateCreating = 1;
@@ -124,7 +127,7 @@ class LazyInstance {
 
   // Convenience typedef to avoid having to repeat Type for leaky lazy
   // instances.
-  typedef LazyInstance<Type, LeakyLazyInstanceTraits<Type> > Leaky;
+  typedef LazyInstance<Type, internal::LeakyLazyInstanceTraits<Type> > Leaky;
 
   Type& Get() {
     return *Pointer();