Revert of WTF::ThreadSpecific should use base::ThreadLocalStorage.

third_party/WebKit/Source/platform/text/TextBreakIteratorICU.cpp

Index: third_party/WebKit/Source/platform/text/TextBreakIteratorICU.cpp
diff --git a/third_party/WebKit/Source/platform/text/TextBreakIteratorICU.cpp b/third_party/WebKit/Source/platform/text/TextBreakIteratorICU.cpp
index c014507a11a4f79f73cf29a3658b1cd06a389330..9691763b288d72ea081061fb9c23740dd4dbbef4 100644
--- a/third_party/WebKit/Source/platform/text/TextBreakIteratorICU.cpp
+++ b/third_party/WebKit/Source/platform/text/TextBreakIteratorICU.cpp
@@ -39,14 +39,14 @@ class LineBreakIteratorPool final {
     USING_FAST_MALLOC(LineBreakIteratorPool);
     WTF_MAKE_NONCOPYABLE(LineBreakIteratorPool);
 public:
-    LineBreakIteratorPool() { }
-
     static LineBreakIteratorPool& sharedPool()
     {
         static WTF::ThreadSpecific<LineBreakIteratorPool>* pool = new WTF::ThreadSpecific<LineBreakIteratorPool>;
         return **pool;
     }
 
+    static PassOwnPtr<LineBreakIteratorPool> create() { return adoptPtr(new LineBreakIteratorPool); }
+
     icu::BreakIterator* take(const AtomicString& locale)
     {
         icu::BreakIterator* iterator = 0;
@@ -93,12 +93,16 @@ public:
     }
 
 private:
+    LineBreakIteratorPool() { }
+
     static const size_t capacity = 4;
 
     typedef std::pair<AtomicString, icu::BreakIterator*> Entry;
     typedef Vector<Entry, capacity> Pool;
     Pool m_pool;
     HashMap<icu::BreakIterator*, AtomicString> m_vendedIterators;
+
+    friend WTF::ThreadSpecific<LineBreakIteratorPool>::operator LineBreakIteratorPool*();
 };
 
 enum TextContext { NoContext, PriorContext, PrimaryContext };