Windows implementation of multiline RenderText

ui/gfx/render_text_win.h

Index: ui/gfx/render_text_win.h
diff --git a/ui/gfx/render_text_win.h b/ui/gfx/render_text_win.h
index 620ef092dff98fd2175427ab390b253aa3057198..1ec13c6a35b6eb268e0e7781f029cb38cb8fd6c3 100644
--- a/ui/gfx/render_text_win.h
+++ b/ui/gfx/render_text_win.h
@@ -87,6 +87,8 @@ class RenderTextWin : public RenderText {
 
  private:
   FRIEND_TEST_ALL_PREFIXES(RenderTextTest, Win_LogicalClusters);
+  FRIEND_TEST_ALL_PREFIXES(RenderTextTest, Multiline_MinWidth);
+  FRIEND_TEST_ALL_PREFIXES(RenderTextTest, Multiline_NormalWidth);
 
   void ItemizeLogicalText();
   void LayoutVisualText();
@@ -121,11 +123,12 @@ class RenderTextWin : public RenderText {
   SCRIPT_STATE script_state_;
 
   ScopedVector<internal::TextRun> runs_;
-  Size string_size_;
 
-  // A common vertical baseline for all the text runs. This is computed as the
-  // largest baseline over all the runs' fonts.
-  int common_baseline_;
+  // Single line width of the layout text.
+  int string_width_;
+
+  // Wrapped multiline size of the layout text.
+  Size multiline_string_size_;
 
   scoped_ptr<int[]> visual_to_logical_;
   scoped_ptr<int[]> logical_to_visual_;