Allow extension APIs to be called from WebUI.

extensions/renderer/script_context.cc

 // 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 "extensions/renderer/script_context.h"
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/string_split.h"
 #include "base/strings/string_util.h"
@@ skipping 24 matching lines @@
                              Feature::Context context_type)
     : v8_context_(v8_context),
       web_frame_(web_frame),
       extension_(extension),
       context_type_(context_type),
       safe_builtins_(this),
       isolate_(v8_context->GetIsolate()) {
   VLOG(1) << "Created context:\n"
           << "  extension id: " << GetExtensionID() << "\n"
           << "  frame:        " << web_frame_ << "\n"
+          << "  URL:          " << GetURL() << "\n"
           << "  context type: " << GetContextTypeDescription();
   gin::PerContextData::From(v8_context)->set_runner(this);
 }
 
 ScriptContext::~ScriptContext() {
   VLOG(1) << "Destroyed context for extension\n"
           << "  extension id: " << GetExtensionID();
   Invalidate();
 }
 
@@ skipping 75 matching lines @@
     case Feature::BLESSED_EXTENSION_CONTEXT:
       return "BLESSED_EXTENSION";
     case Feature::UNBLESSED_EXTENSION_CONTEXT:
       return "UNBLESSED_EXTENSION";
     case Feature::CONTENT_SCRIPT_CONTEXT:
       return "CONTENT_SCRIPT";
     case Feature::WEB_PAGE_CONTEXT:
       return "WEB_PAGE";
     case Feature::BLESSED_WEB_PAGE_CONTEXT:
       return "BLESSED_WEB_PAGE";
+    case Feature::WEBUI_CONTEXT:
+      return "WEBUI";
   }
   NOTREACHED();
   return std::string();
 }
 
 GURL ScriptContext::GetURL() const {
   return web_frame() ? GetDataSourceURLForFrame(web_frame()) : GURL();
 }
 
 bool ScriptContext::IsAnyFeatureAvailableToContext(const Feature& api) {
@@ skipping 84 matching lines @@
                                           v8::Handle<v8::Value> argv[]) {
   return CallFunction(function, argc, argv);
 }
 
 gin::ContextHolder* ScriptContext::GetContextHolder() {
   v8::HandleScope handle_scope(isolate());
   return gin::PerContextData::From(v8_context())->context_holder();
 }
 
 }  // namespace extensions