[Extensions Bindings] Add activity logging of custom handling

chrome/renderer/extensions/app_hooks_delegate.cc

 // Copyright 2017 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/app_hooks_delegate.h"
 
+#include "extensions/renderer/api_activity_logger.h"
 #include "extensions/renderer/bindings/api_request_handler.h"
 #include "extensions/renderer/bindings/api_signature.h"
 #include "extensions/renderer/script_context_set.h"
 #include "gin/converter.h"
 
 namespace extensions {
 
 namespace {
 
 void IsInstalledGetterCallback(
     v8::Local<v8::String> property,
     const v8::PropertyCallbackInfo<v8::Value>& info) {
   v8::HandleScope handle_scope(info.GetIsolate());
+  v8::Local<v8::Context> context = info.Holder()->CreationContext();
   ScriptContext* script_context =
-      ScriptContextSet::GetContextByV8Context(info.Holder()->CreationContext());
+      ScriptContextSet::GetContextByV8Context(context);
   DCHECK(script_context);
   auto* core =
       static_cast<AppBindingsCore*>(info.Data().As<v8::External>()->Value());
+  // Since this is more-or-less an API, log it as an API call.
+  APIActivityLogger::LogAPICall(context, "app.getIsInstalled",
+                                std::vector<v8::Local<v8::Value>>());
   info.GetReturnValue().Set(core->GetIsInstalled(script_context));
 }
 
 }  // namespace
 
 AppHooksDelegate::AppHooksDelegate(Dispatcher* dispatcher,
                                    APIRequestHandler* request_handler)
     : app_core_(dispatcher), request_handler_(request_handler) {}
 AppHooksDelegate::~AppHooksDelegate() {}
 
@@ skipping 67 matching lines @@
                                          const std::string& install_state) {
   // Note: it's kind of lame that we serialize the install state to a
   // base::Value here when we're just going to later convert it to v8, but it's
   // not worth the specialization on APIRequestHandler for this oddball API.
   base::ListValue response;
   response.AppendString(install_state);
   request_handler_->CompleteRequest(request_id, response, std::string());
 }
 
 }  // namespace extensions