Move the "extension" namespace from extension_api.json into extension_api_extension.json.

chrome/browser/extensions/extension_webrequest_api.cc

 // Copyright (c) 2011 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/browser/extensions/extension_webrequest_api.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/json/json_writer.h"
@@ skipping 254 matching lines @@
   header->SetString(keys::kHeaderNameKey, name);
   if (IsStringUTF8(value)) {
     header->SetString(keys::kHeaderValueKey, value);
   } else {
     header->Set(keys::kHeaderBinaryValueKey,
                 helpers::StringToCharList(value));
   }
   return header;
 }
 
-// Creates a list of HttpHeaders (see extension_api.json). If |headers| is
+// Creates a list of HttpHeaders (see the extension API JSON). If |headers| is
 // NULL, the list is empty. Ownership is passed to the caller.
 ListValue* GetResponseHeadersList(const net::HttpResponseHeaders* headers) {
   ListValue* headers_value = new ListValue();
   if (headers) {
     void* iter = NULL;
     std::string name;
     std::string value;
     while (headers->EnumerateHeaderLines(&iter, &name, &value))
       headers_value->Append(ToHeaderDictionary(name, value));
   }
@@ skipping 1421 matching lines @@
       } else if ((*it)->name().find("AdBlock") != std::string::npos) {
         adblock = true;
       } else {
         other = true;
       }
     }
   }
 
   host->Send(new ExtensionMsg_UsingWebRequestAPI(adblock, adblock_plus, other));
 }