Revert of Remove StringBuilder::appendLiteral.

third_party/WebKit/Source/modules/canvas2d/CanvasRenderingContext2D.cpp

 /*
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2007 Alp Toker <alp@atoker.com>
  * Copyright (C) 2008 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2008 Dirk Schulze <krit@webkit.org>
  * Copyright (C) 2010 Torch Mobile (Beijing) Co. Ltd. All rights reserved.
  * Copyright (C) 2012, 2013 Intel Corporation. All rights reserved.
  * Copyright (C) 2013 Adobe Systems Incorporated. All rights reserved.
  *
@@ skipping 408 matching lines @@
 String CanvasRenderingContext2D::font() const
 {
     if (!state().hasRealizedFont())
         return defaultFont;
 
     canvas()->document().canvasFontCache()->willUseCurrentFont();
     StringBuilder serializedFont;
     const FontDescription& fontDescription = state().font().getFontDescription();
 
     if (fontDescription.style() == FontStyleItalic)
-        serializedFont.append("italic ");
+        serializedFont.appendLiteral("italic ");
     if (fontDescription.weight() == FontWeightBold)
-        serializedFont.append("bold ");
+        serializedFont.appendLiteral("bold ");
     if (fontDescription.variantCaps() == FontDescription::SmallCaps)
-        serializedFont.append("small-caps ");
+        serializedFont.appendLiteral("small-caps ");
 
     serializedFont.appendNumber(fontDescription.computedPixelSize());
-    serializedFont.append("px");
+    serializedFont.appendLiteral("px");
 
     const FontFamily& firstFontFamily = fontDescription.family();
     for (const FontFamily* fontFamily = &firstFontFamily; fontFamily; fontFamily = fontFamily->next()) {
         if (fontFamily != &firstFontFamily)
             serializedFont.append(',');
 
         // FIXME: We should append family directly to serializedFont rather than building a temporary string.
         String family = fontFamily->family();
         if (family.startsWith("-webkit-"))
             family = family.substring(8);
@@ skipping 613 matching lines @@
 
 unsigned CanvasRenderingContext2D::hitRegionsCount() const
 {
     if (m_hitRegionManager)
         return m_hitRegionManager->getHitRegionsCount();
 
     return 0;
 }
 
 } // namespace blink