Move glyph lookup to hb-ot-font and remove glyph cache in HarfBuzzFace

third_party/WebKit/Source/platform/fonts/shaping/HarfBuzzShaper.cpp

Index: third_party/WebKit/Source/platform/fonts/shaping/HarfBuzzShaper.cpp
diff --git a/third_party/WebKit/Source/platform/fonts/shaping/HarfBuzzShaper.cpp b/third_party/WebKit/Source/platform/fonts/shaping/HarfBuzzShaper.cpp
index e4c1adc78ae931f044c7bde788a2ac5dd2880b6d..2752408ece89a05513ff67ad165a8d0a2ec204e7 100644
--- a/third_party/WebKit/Source/platform/fonts/shaping/HarfBuzzShaper.cpp
+++ b/third_party/WebKit/Source/platform/fonts/shaping/HarfBuzzShaper.cpp
@@ -53,32 +53,6 @@
 
 namespace blink {
 
-template<typename T>
-class HarfBuzzScopedPtr {
-    STACK_ALLOCATED();
-    WTF_MAKE_NONCOPYABLE(HarfBuzzScopedPtr);
-public:
-    typedef void (*DestroyFunction)(T*);
-
-    HarfBuzzScopedPtr(T* ptr, DestroyFunction destroy)
-        : m_ptr(ptr)
-        , m_destroy(destroy)
-    {
-        ASSERT(m_destroy);
-    }
-    ~HarfBuzzScopedPtr()
-    {
-        if (m_ptr)
-            (*m_destroy)(m_ptr);
-    }
-
-    T* get() { return m_ptr; }
-    void set(T* ptr) { m_ptr = ptr; }
-private:
-    T* m_ptr;
-    DestroyFunction m_destroy;
-};
-
 static inline float harfBuzzPositionToFloat(hb_position_t value)
 {
     return static_cast<float>(value) / (1 << 16);