Supports FontList in Textfield.

ui/gfx/render_text.cc

 // 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.
 
 #include "ui/gfx/render_text.h"
 
 #include <algorithm>
 
 #include "base/i18n/break_iterator.h"
 #include "base/logging.h"
@@ skipping 342 matching lines @@
 }
 
 void RenderText::SetFont(const Font& font) {
   SetFontList(FontList(font));
 }
 
 void RenderText::SetFontSize(int size) {
   SetFontList(font_list_.DeriveFontListWithSize(size));
 }
 
+const Font& RenderText::GetPrimaryFont() const {
+  return font_list_.GetPrimaryFont();
+}
+
 void RenderText::SetCursorEnabled(bool cursor_enabled) {
   cursor_enabled_ = cursor_enabled;
   cached_bounds_and_offset_valid_ = false;
 }
 
-const Font& RenderText::GetFont() const {
-  return font_list_.GetFonts()[0];
-}
-
 void RenderText::ToggleInsertMode() {
   insert_mode_ = !insert_mode_;
   cached_bounds_and_offset_valid_ = false;
 }
 
 void RenderText::SetObscured(bool obscured) {
   if (obscured != obscured_) {
     obscured_ = obscured;
     obscured_reveal_index_ = -1;
     cached_bounds_and_offset_valid_ = false;
@@ skipping 484 matching lines @@
   if (!fade_head() && !fade_tail())
     return;
 
   const int text_width = GetStringSize().width();
   const int display_width = display_rect().width();
 
   // If the text fits as-is, no need to fade.
   if (text_width <= display_width)
     return;
 
-  int gradient_width = CalculateFadeGradientWidth(GetFont(), display_width);
+  int gradient_width = CalculateFadeGradientWidth(GetPrimaryFont(),
+                                                  display_width);
   if (gradient_width == 0)
     return;
 
   bool fade_left = fade_head();
   bool fade_right = fade_tail();
   // Under RTL, |fade_right| == |fade_head|.
   // TODO(asvitkine): This is currently not based on GetTextDirection() because
   //                  RenderTextWin does not return a direction that's based on
   //                  the text content.
   if (horizontal_alignment_ == ALIGN_RIGHT)
@@ skipping 127 matching lines @@
   cursor_bounds_ += delta_offset;
 }
 
 void RenderText::DrawSelection(Canvas* canvas) {
   const std::vector<Rect> sel = GetSubstringBounds(selection());
   for (std::vector<Rect>::const_iterator i = sel.begin(); i < sel.end(); ++i)
     canvas->FillRect(*i, selection_background_focused_color_);
 }
 
 }  // namespace gfx