Prepare to enable RenderTextHarfBuzz by default

ui/gfx/render_text_win.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef UI_GFX_RENDER_TEXT_WIN_H_
 #define UI_GFX_RENDER_TEXT_WIN_H_
 
 #include <usp10.h>
 
 #include <map>
@@ skipping 72 matching lines @@
   virtual bool IsValidCursorIndex(size_t index) OVERRIDE;
   virtual void ResetLayout() OVERRIDE;
   virtual void EnsureLayout() OVERRIDE;
   virtual void DrawVisualText(Canvas* canvas) OVERRIDE;
 
  private:
   FRIEND_TEST_ALL_PREFIXES(RenderTextTest, Win_BreakRunsByUnicodeBlocks);
   FRIEND_TEST_ALL_PREFIXES(RenderTextTest, Win_LogicalClusters);
   FRIEND_TEST_ALL_PREFIXES(RenderTextTest, Multiline_MinWidth);
   FRIEND_TEST_ALL_PREFIXES(RenderTextTest, Multiline_NormalWidth);
+  FRIEND_TEST_ALL_PREFIXES(RenderTextTest, BreakRunsByUnicodeBlocks);
 
   void ItemizeLogicalText();
   void LayoutVisualText();
   void LayoutTextRun(internal::TextRun* run);
 
   // Helper function that calls |ScriptShape()| on the run, which has logic to
   // handle E_OUTOFMEMORY return codes.
   HRESULT ShapeTextRunWithFont(internal::TextRun* run, const Font& font);
 
   // Returns the number of characters in |run| that have missing glyphs.
@@ skipping 33 matching lines @@
   scoped_ptr<int[]> logical_to_visual_;
 
   bool needs_layout_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderTextWin);
 };
 
 }  // namespace gfx
 
 #endif  // UI_GFX_RENDER_TEXT_WIN_H_