Replace StyleRange with BreakList; update RenderText, etc.

ui/views/controls/textfield/textfield.h

Index: ui/views/controls/textfield/textfield.h
diff --git a/ui/views/controls/textfield/textfield.h b/ui/views/controls/textfield/textfield.h
index 57509ea64781631823bf7cf243fa8d738d5f073b..33101b19c110ccb84e086e18d8f9d5cc64d05daf 100644
--- a/ui/views/controls/textfield/textfield.h
+++ b/ui/views/controls/textfield/textfield.h
@@ -16,6 +16,7 @@
 #include "ui/base/keycodes/keyboard_codes.h"
 #include "ui/gfx/font.h"
 #include "ui/gfx/native_widget_types.h"
+#include "ui/gfx/text_constants.h"
 #include "ui/views/controls/textfield/native_textfield_wrapper.h"
 #include "ui/views/view.h"
 
@@ -23,10 +24,6 @@
 #include "base/logging.h"
 #endif
 
-namespace gfx {
-struct StyleRange;
-}  // namespace gfx
-
 namespace ui {
 class Range;
 class TextInputClient;
@@ -209,14 +206,18 @@ class VIEWS_EXPORT Textfield : public View {
   // only and has to be called after the wrapper is created.
   size_t GetCursorPosition() const;
 
-  // Applies |style| to the text specified by its range. The style will be
-  // ignored if range is empty or invalid. This is views-implementation only and
+  // Set the text color over the entire text or a logical character range.
+  // Empty and invalid ranges are ignored. This is views-implementation only and
   // has to be called after the wrapper is created.
-  void ApplyStyleRange(const gfx::StyleRange& style);
+  void SetColor(SkColor value);
+  void ApplyColor(SkColor value, const ui::Range& range);
 
-  // Applies the default style to the textfield. This is views-implementation
-  // only and has to be called after the wrapper is created.
-  void ApplyDefaultStyle();
+  // Set various text styles over the entire text or a logical character range.
+  // The respective |style| is applied if |value| is true, or removed if false.
+  // Empty and invalid ranges are ignored. This is views-implementation only and
+  // has to be called after the wrapper is created.
+  void SetStyle(gfx::TextStyle style, bool value);
+  void ApplyStyle(gfx::TextStyle style, bool value, const ui::Range& range);
 
   // Clears Edit history.
   void ClearEditHistory();