Move more string_util functions to base namespace.

chrome/common/favicon/fallback_icon_url_parser.cc

 // Copyright 2015 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 "chrome/common/favicon/fallback_icon_url_parser.h"
 
 #include <algorithm>
 
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_split.h"
 #include "base/strings/string_util.h"
 #include "third_party/skia/include/utils/SkParse.h"
 #include "ui/gfx/favicon_size.h"
 
 namespace {
 
 // List of sizes corresponding to RGB, ARGB, RRGGBB, AARRGGBB.
 const size_t kValidHexColorSizes[] = {3, 4, 6, 8};
 
 // Returns whether |color_str| is a valid CSS color in hex format if we prepend
 // '#', i.e., whether |color_str| matches /^[0-9A-Fa-f]{3,4,6,8}$/.
 bool IsHexColorString(const std::string& color_str) {
   size_t len = color_str.length();
   const size_t* end = kValidHexColorSizes + arraysize(kValidHexColorSizes);
   if (std::find(kValidHexColorSizes, end, len) == end)
     return false;
-  for (auto ch : color_str)
-    if (!IsHexDigit(ch))
+  for (auto ch : color_str) {
+    if (!base::IsHexDigit(ch))
       return false;
+  }
   return true;
 }
 
 }  // namespace
 
 namespace chrome {
 
 ParsedFallbackIconPath::ParsedFallbackIconPath()
     : size_in_pixels_(gfx::kFaviconSize) {
 }
@@ skipping 85 matching lines @@
   SkColor temp_color = SK_ColorWHITE;
   const char* end = SkParse::FindColor(color_str.c_str(), &temp_color);
   if (end && !*end) {  // Successful if call succeeds and string is consumed.
     *color = temp_color;
     return true;
   }
   return false;
 }
 
 }  // namespace chrome