Update uses of UTF conversions in content/ to use the base:: namespace.

content/browser/renderer_host/pepper/pepper_truetype_font_list_win.cc

Index: content/browser/renderer_host/pepper/pepper_truetype_font_list_win.cc
diff --git a/content/browser/renderer_host/pepper/pepper_truetype_font_list_win.cc b/content/browser/renderer_host/pepper/pepper_truetype_font_list_win.cc
index 3530e1e1b5e61c5019ab9bb16aacc43001b816d3..c52ee96aa7ed694e71ea8b24be05dc36c924474c 100644
--- a/content/browser/renderer_host/pepper/pepper_truetype_font_list_win.cc
+++ b/content/browser/renderer_host/pepper/pepper_truetype_font_list_win.cc
@@ -27,7 +27,7 @@ static int CALLBACK EnumFontFamiliesProc(ENUMLOGFONTEXW* logical_font,
     const LOGFONTW& lf = logical_font->elfLogFont;
     if (lf.lfFaceName[0] && lf.lfFaceName[0] != '@' &&
         lf.lfOutPrecision == OUT_STROKE_PRECIS) {  // Outline fonts only.
-      std::string face_name(UTF16ToUTF8(lf.lfFaceName));
+      std::string face_name(base::UTF16ToUTF8(lf.lfFaceName));
       font_families->push_back(face_name);
     }
   }
@@ -44,7 +44,7 @@ static int CALLBACK EnumFontsInFamilyProc(ENUMLOGFONTEXW* logical_font,
     if (lf.lfFaceName[0] && lf.lfFaceName[0] != '@' &&
         lf.lfOutPrecision == OUT_STROKE_PRECIS) {  // Outline fonts only.
       ppapi::proxy::SerializedTrueTypeFontDesc desc;
-      desc.family = UTF16ToUTF8(lf.lfFaceName);
+      desc.family = base::UTF16ToUTF8(lf.lfFaceName);
       if (lf.lfItalic)
         desc.style = PP_TRUETYPEFONTSTYLE_ITALIC;
       desc.weight = static_cast<PP_TrueTypeFontWeight_Dev>(lf.lfWeight);
@@ -73,7 +73,7 @@ void GetFontsInFamily_SlowBlocking(const std::string& family,
   LOGFONTW logfont;
   memset(&logfont, 0, sizeof(logfont));
   logfont.lfCharSet = DEFAULT_CHARSET;
-  base::string16 family16 = UTF8ToUTF16(family);
+  base::string16 family16 = base::UTF8ToUTF16(family);
   memcpy(&logfont.lfFaceName, &family16[0], sizeof(logfont.lfFaceName));
   base::win::ScopedCreateDC hdc(::CreateCompatibleDC(NULL));
   ::EnumFontFamiliesExW(hdc, &logfont, (FONTENUMPROCW)&EnumFontsInFamilyProc,