Fix eliding of LTR tab title in RTL UI under non-Windows Views.

ui/gfx/canvas_skia.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/canvas.h"
 
 #include "base/i18n/rtl.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "ui/base/range/range.h"
@@ skipping 381 matching lines @@
       } else {
         text_row[cur_x] |= 0xff << SK_A32_SHIFT;  // Make opaque.
       }
     }
   }
 
   // Draw the halo bitmap with blur.
   DrawImageInt(text_bitmap, x - 1, y - 1);
 }
 
-// TODO(asvitkine): Remove the ifdef once all platforms use canvas_skia.cc.
-#if defined(OS_WIN)
 void Canvas::DrawFadeTruncatingString(
       const string16& text,
       TruncateFadeMode truncate_mode,
       size_t desired_characters_to_truncate_from_head,
       const gfx::Font& font,
       SkColor color,
       const gfx::Rect& display_rect) {
   int flags = NO_ELLIPSIS;
 
   // If the whole string fits in the destination then just draw it directly.
@@ skipping 46 matching lines @@
   const int line_height = render_text->GetStringSize().height();
   rect.Offset(0, VAlignText(line_height, flags, display_rect.height()));
   rect.set_height(line_height);
   render_text->SetDisplayRect(rect);
 
   canvas_->save(SkCanvas::kClip_SaveFlag);
   ClipRect(display_rect);
   render_text->Draw(this);
   canvas_->restore();
 }
-#endif
 
 }  // namespace gfx