Shows the error message while fetching the SW script in the DevTools console.

third_party/WebKit/Source/web/WebEmbeddedWorkerImpl.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 17 matching lines @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "web/WebEmbeddedWorkerImpl.h"
 
 #include "core/dom/CrossThreadTask.h"
 #include "core/dom/Document.h"
 #include "core/dom/SecurityContext.h"
 #include "core/fetch/SubstituteData.h"
 #include "core/frame/csp/ContentSecurityPolicy.h"
+#include "core/inspector/ConsoleMessage.h"
 #include "core/inspector/InspectorInstrumentation.h"
 #include "core/inspector/WorkerDebuggerAgent.h"
 #include "core/inspector/WorkerInspectorController.h"
 #include "core/loader/FrameLoadRequest.h"
 #include "core/workers/WorkerClients.h"
 #include "core/workers/WorkerGlobalScope.h"
 #include "core/workers/WorkerInspectorProxy.h"
 #include "core/workers/WorkerLoaderProxy.h"
 #include "core/workers/WorkerScriptLoader.h"
 #include "core/workers/WorkerThreadStartupData.h"
 #include "modules/serviceworkers/ServiceWorkerContainerClient.h"
 #include "modules/serviceworkers/ServiceWorkerThread.h"
 #include "platform/Histogram.h"
 #include "platform/SharedBuffer.h"
 #include "platform/heap/Handle.h"
 #include "platform/network/ContentSecurityPolicyParsers.h"
 #include "platform/network/ContentSecurityPolicyResponseHeaders.h"
 #include "public/platform/Platform.h"
 #include "public/platform/WebURLRequest.h"
 #include "public/platform/modules/serviceworker/WebServiceWorkerProvider.h"
+#include "public/web/WebConsoleMessage.h"
 #include "public/web/WebDevToolsAgent.h"
 #include "public/web/WebSettings.h"
 #include "public/web/WebView.h"
 #include "public/web/WebWorkerContentSettingsClientProxy.h"
 #include "public/web/modules/serviceworker/WebServiceWorkerContextClient.h"
 #include "public/web/modules/serviceworker/WebServiceWorkerNetworkProvider.h"
 #include "web/IndexedDBClientImpl.h"
 #include "web/ServiceWorkerGlobalScopeClientImpl.h"
 #include "web/ServiceWorkerGlobalScopeProxy.h"
 #include "web/WebDataSourceImpl.h"
@@ skipping 128 matching lines @@
 
 void WebEmbeddedWorkerImpl::dispatchDevToolsMessage(int sessionId, const WebString& message)
 {
     if (m_askedToTerminate)
         return;
     WebDevToolsAgent* devtoolsAgent = m_mainFrame->devToolsAgent();
     if (devtoolsAgent)
         devtoolsAgent->dispatchOnInspectorBackend(sessionId, message);
 }
 
+void WebEmbeddedWorkerImpl::addMessageToConsole(const WebConsoleMessage& message)
+{
+    MessageLevel webCoreMessageLevel;
+    switch (message.level) {
+    case WebConsoleMessage::LevelDebug:
+        webCoreMessageLevel = DebugMessageLevel;
+        break;
+    case WebConsoleMessage::LevelLog:
+        webCoreMessageLevel = LogMessageLevel;
+        break;
+    case WebConsoleMessage::LevelWarning:
+        webCoreMessageLevel = WarningMessageLevel;
+        break;
+    case WebConsoleMessage::LevelError:
+        webCoreMessageLevel = ErrorMessageLevel;
+        break;
+    default:
+        NOTREACHED();
+        return;
+    }
+
+    m_mainFrame->frame()->document()->addConsoleMessage(ConsoleMessage::create(OtherMessageSource, webCoreMessageLevel, message.text, message.url, message.lineNumber, message.columnNumber));
+}
+
 void WebEmbeddedWorkerImpl::postMessageToPageInspector(const String& message)
 {
     m_workerInspectorProxy->dispatchMessageFromWorker(message);
 }
 
 void WebEmbeddedWorkerImpl::postTaskToLoader(PassOwnPtr<ExecutionContextTask> task)
 {
     m_mainFrame->frame()->document()->postTask(BLINK_FROM_HERE, task);
 }
 
@@ skipping 159 matching lines @@
     m_mainScriptLoader.clear();
 
     m_workerGlobalScopeProxy = ServiceWorkerGlobalScopeProxy::create(*this, *document, *m_workerContextClient);
     m_loaderProxy = WorkerLoaderProxy::create(this);
     m_workerThread = ServiceWorkerThread::create(m_loaderProxy, *m_workerGlobalScopeProxy);
     m_workerThread->start(startupData.release());
     m_workerInspectorProxy->workerThreadCreated(document, m_workerThread.get(), scriptURL);
 }
 
 } // namespace blink