Add a centralized mechanism for whitelisting access to extension permissions.

chrome/renderer/extensions/chrome_private_custom_bindings.cc

 // Copyright (c) 2012 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/renderer/extensions/chrome_private_custom_bindings.h"
 
 #include <algorithm>
 #include <string>
 #include <vector>
 
@@ skipping 13 matching lines @@
     : ChromeV8Extension(
           "extensions/chrome_private_custom_bindings.js",
           IDR_CHROME_PRIVATE_CUSTOM_BINDINGS_JS,
           dependency_count,
           dependencies,
           extension_dispatcher) {}
 
 // static
 v8::Handle<v8::Value> ChromePrivateCustomBindings::DecodeJPEG(
     const v8::Arguments& args) {
-  static const char* kAllowedIds[] = {
-      "haiffjcadagjlijoggckpgfnoeiflnem",
-      "gnedhmakppccajfpfiihfcdlnpgomkcf",
-      "fjcibdnjlbfnbfdjneajpipnlcppleek",
-      "oflbaaikkabfdfkimeclgkackhdkpnip"  // Testing extension.
-  };
-  const std::vector<std::string> allowed_ids(
-      kAllowedIds, kAllowedIds + arraysize(kAllowedIds));
-
   ChromePrivateCustomBindings* v8_extension =
       GetFromArguments<ChromePrivateCustomBindings>(args);
   const ::Extension* extension =
       v8_extension->GetExtensionForCurrentRenderView();
   if (!extension)
     return v8::Undefined();
-  if (allowed_ids.end() == std::find(
-        allowed_ids.begin(), allowed_ids.end(), extension->id())) {
-    return v8::Undefined();
-  }
 
   DCHECK(args.Length() == 1);
   DCHECK(args[0]->IsArray());
   v8::Local<v8::Object> jpeg_array = args[0]->ToObject();
   size_t jpeg_length =
       jpeg_array->Get(v8::String::New("length"))->Int32Value();
 
   // Put input JPEG array into string for DecodeImage().
   std::string jpeg_array_string;
   jpeg_array_string.reserve(jpeg_length);
@@ skipping 39 matching lines @@
 
 v8::Handle<v8::FunctionTemplate> ChromePrivateCustomBindings::GetNativeFunction(
     v8::Handle<v8::String> name) {
   if (name->Equals(v8::String::New("DecodeJPEG")))
     return v8::FunctionTemplate::New(DecodeJPEG, v8::External::New(this));
 
   return ChromeV8Extension::GetNativeFunction(name);
 }
 
 }  // namespace extensions