Only use skia::RefPtr for refcounting

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 206 matching lines @@
     // to a layer and restore it faded by drawing a rect in kDstIn_Mode mode.
     //
     // Skip this when there is a looper which seems not working well with
     // deferred paint. Currently a looper is only used for text shadows.
     //
     // TODO(asvitkine): Remove this work-around once the Skia bug is fixed.
     //                  http://code.google.com/p/skia/issues/detail?id=590
     if (!paint_.isLCDRenderText() &&
         paint_.getShader() &&
         !paint_.getLooper()) {
-      deferred_fade_shader_ = paint_.getShader();
+      deferred_fade_shader_ = skia::ShareRef(paint_.getShader());
       paint_.setShader(NULL);
       canvas_skia_->saveLayer(&bounds_, NULL);
     }
   }
 
   const size_t byte_length = glyph_count * sizeof(glyphs[0]);
   canvas_skia_->drawPosText(&glyphs[0], byte_length, &pos[0], paint_);
 }
 
 void SkiaTextRenderer::DrawDecorations(int x, int y, int width, bool underline,
@@ skipping 731 matching lines @@
 
 void RenderText::DrawSelection(Canvas* canvas) {
   const SkColor color = focused() ? selection_background_focused_color_ :
                                     selection_background_unfocused_color_;
   const std::vector<Rect> sel = GetSubstringBounds(selection());
   for (std::vector<Rect>::const_iterator i = sel.begin(); i < sel.end(); ++i)
     canvas->FillRect(*i, color);
 }
 
 }  // namespace gfx