Rename ServiceWorkerContextObserver to ServiceWorkerContextCoreObserver.

content/browser/devtools/protocol/service_worker_handler.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 "content/browser/devtools/protocol/service_worker_handler.h"
 
 #include "base/bind.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #include "content/browser/background_sync/background_sync_context.h"
@@ skipping 404 matching lines @@
     if (host)
       version_value->SetTargetId(host->GetId());
     result->addItem(std::move(version_value));
   }
   frontend_->WorkerVersionUpdated(std::move(result));
 }
 
 void ServiceWorkerHandler::OnErrorReported(
     int64_t registration_id,
     int64_t version_id,
-    const ServiceWorkerContextObserver::ErrorInfo& info) {
+    const ServiceWorkerContextCoreObserver::ErrorInfo& info) {
   frontend_->WorkerErrorReported(
       ServiceWorker::ServiceWorkerErrorMessage::Create()
           .SetErrorMessage(base::UTF16ToUTF8(info.error_message))
           .SetRegistrationId(base::Int64ToString(registration_id))
           .SetVersionId(base::Int64ToString(version_id))
           .SetSourceURL(info.source_url.spec())
           .SetLineNumber(info.line_number)
           .SetColumnNumber(info.column_number)
           .Build());
 }
 
 void ServiceWorkerHandler::ClearForceUpdate() {
   if (context_)
     context_->SetForceUpdateOnPageLoad(false);
 }
 
 }  // namespace protocol
 }  // namespace content