Upstream most of the iOS WebUI support in ios/web/

ios/public/provider/web/web_ui_ios_message_handler.cc

Index: ios/public/provider/web/web_ui_ios_message_handler.cc
diff --git a/content/browser/webui/web_ui_message_handler.cc b/ios/public/provider/web/web_ui_ios_message_handler.cc
similarity index 65%
copy from content/browser/webui/web_ui_message_handler.cc
copy to ios/public/provider/web/web_ui_ios_message_handler.cc
index 44f065d44ed6f90d94387cd2af0e9ffdbb029779..b4b473e012c33cc62075d58e3fa8f0518bfe2446 100644
--- a/content/browser/webui/web_ui_message_handler.cc
+++ b/ios/public/provider/web/web_ui_ios_message_handler.cc
@@ -1,18 +1,18 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Copyright 2014 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 "content/public/browser/web_ui_message_handler.h"
+#include "ios/public/provider/web/web_ui_ios_message_handler.h"
 
 #include "base/logging.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/values.h"
 
-namespace content {
+namespace web {
 
-bool WebUIMessageHandler::ExtractIntegerValue(const base::ListValue* value,
-                                              int* out_int) {
+bool WebUIIOSMessageHandler::ExtractIntegerValue(const base::ListValue* value,
+                                                 int* out_int) {
   std::string string_value;
   if (value->GetString(0, &string_value))
     return base::StringToInt(string_value, out_int);
@@ -25,8 +25,8 @@ bool WebUIMessageHandler::ExtractIntegerValue(const base::ListValue* value,
   return false;
 }
 
-bool WebUIMessageHandler::ExtractDoubleValue(const base::ListValue* value,
-                                             double* out_value) {
+bool WebUIIOSMessageHandler::ExtractDoubleValue(const base::ListValue* value,
+                                                double* out_value) {
   std::string string_value;
   if (value->GetString(0, &string_value))
     return base::StringToDouble(string_value, out_value);
@@ -36,7 +36,7 @@ bool WebUIMessageHandler::ExtractDoubleValue(const base::ListValue* value,
   return false;
 }
 
-base::string16 WebUIMessageHandler::ExtractStringValue(
+base::string16 WebUIIOSMessageHandler::ExtractStringValue(
     const base::ListValue* value) {
   base::string16 string16_value;
   if (value->GetString(0, &string16_value))
@@ -45,4 +45,4 @@ base::string16 WebUIMessageHandler::ExtractStringValue(
   return base::string16();
 }
 
-}  // namespace content
+}  // namespace web