Set up the infrastructure for Extension event metrics.

extensions/browser/api/printer_provider/printer_provider_api.cc

 // Copyright 2015 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/browser/api/printer_provider/printer_provider_api.h"
 
 #include <map>
 #include <set>
 #include <utility>
 #include <vector>
@@ skipping 509 matching lines @@
   // NULLed out. Save the pointer before passing it to the requests, as it will
   // be needed later on.
   int request_id = pending_get_printers_requests_.Add(callback);
 
   scoped_ptr<base::ListValue> internal_args(new base::ListValue);
   // Request id is not part of the public API, but it will be massaged out in
   // custom bindings.
   internal_args->AppendInteger(request_id);
 
   scoped_ptr<Event> event(
-      new Event(core_api::printer_provider::OnGetPrintersRequested::kEventName,
+      new Event(events::UNKNOWN,
+                core_api::printer_provider::OnGetPrintersRequested::kEventName,
                 internal_args.Pass()));
   // This callback is called synchronously during |BroadcastEvent|, so
   // Unretained is safe.
   event->will_dispatch_callback =
       base::Bind(&PrinterProviderAPIImpl::WillRequestPrinters,
                  base::Unretained(this), request_id);
 
   event_router->BroadcastEvent(event.Pass());
 }
 
@@ skipping 17 matching lines @@
 
   int request_id = pending_capability_requests_[extension_id].Add(callback);
 
   scoped_ptr<base::ListValue> internal_args(new base::ListValue);
   // Request id is not part of the public API, but it will be massaged out in
   // custom bindings.
   internal_args->AppendInteger(request_id);
   internal_args->AppendString(internal_printer_id);
 
   scoped_ptr<Event> event(new Event(
+      events::UNKNOWN,
       core_api::printer_provider::OnGetCapabilityRequested::kEventName,
       internal_args.Pass()));
 
   event_router->DispatchEventToExtension(extension_id, event.Pass());
 }
 
 void PrinterProviderAPIImpl::DispatchPrintRequested(
     const PrinterProviderPrintJob& job,
     const PrinterProviderAPI::PrintCallback& callback) {
   std::string extension_id;
@@ skipping 27 matching lines @@
 
   print_job.content_type = job.content_type;
   print_job.title = base::UTF16ToUTF8(job.job_title);
   int request_id = pending_print_requests_[extension_id].Add(job, callback);
 
   scoped_ptr<base::ListValue> internal_args(new base::ListValue);
   // Request id is not part of the public API and it will be massaged out in
   // custom bindings.
   internal_args->AppendInteger(request_id);
   internal_args->Append(print_job.ToValue().release());
-  scoped_ptr<Event> event(
-      new Event(core_api::printer_provider::OnPrintRequested::kEventName,
-                internal_args.Pass()));
+  scoped_ptr<Event> event(new Event(
+      events::UNKNOWN, core_api::printer_provider::OnPrintRequested::kEventName,
+      internal_args.Pass()));
   event_router->DispatchEventToExtension(extension_id, event.Pass());
 }
 
 const PrinterProviderPrintJob* PrinterProviderAPIImpl::GetPrintJob(
     const Extension* extension,
     int request_id) const {
   auto it = pending_print_requests_.find(extension->id());
   if (it == pending_print_requests_.end())
     return nullptr;
   return it->second.GetPrintJob(request_id);
@@ skipping 18 matching lines @@
       UsbGuidMap::Get(browser_context_)->GetIdFromGuid(device->guid());
   usb_device.vendor_id = device->vendor_id();
   usb_device.product_id = device->product_id();
 
   scoped_ptr<base::ListValue> internal_args(new base::ListValue);
   // Request id is not part of the public API and it will be massaged out in
   // custom bindings.
   internal_args->AppendInteger(request_id);
   internal_args->Append(usb_device.ToValue().release());
   scoped_ptr<Event> event(new Event(
+      events::UNKNOWN,
       core_api::printer_provider::OnGetUsbPrinterInfoRequested::kEventName,
       internal_args.Pass()));
   event_router->DispatchEventToExtension(extension_id, event.Pass());
 }
 
 void PrinterProviderAPIImpl::OnGetPrintersResult(
     const Extension* extension,
     int request_id,
     const PrinterProviderInternalAPIObserver::PrinterInfoVector& result) {
   base::ListValue printer_list;
@@ skipping 95 matching lines @@
   return new PrinterProviderAPIImpl(context);
 }
 
 // static
 std::string PrinterProviderAPI::GetDefaultPrintError() {
   return core_api::printer_provider_internal::ToString(
       core_api::printer_provider_internal::PRINT_ERROR_FAILED);
 }
 
 }  // namespace extensions