Support performance.now() in workers.

Source/modules/performance/WorkerContextPerformance.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:
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  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 11 matching lines @@
  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 #include "config.h"
-#include "modules/donottrack/NavigatorDoNotTrack.h"
 
-#include "core/loader/FrameLoader.h"
-#include "core/loader/FrameLoaderClient.h"
-#include "core/page/Frame.h"
-#include "core/page/Navigator.h"
-#include "wtf/PassOwnPtr.h"
+#include "modules/performance/WorkerContextPerformance.h"
+
+#include "core/dom/ScriptExecutionContext.h"
+#include "core/workers/WorkerContext.h"
+#include "modules/performance/WorkerPerformance.h"
 
 namespace WebCore {
 
-NavigatorDoNotTrack::NavigatorDoNotTrack(Frame* frame)
-    : DOMWindowProperty(frame)
+WorkerContextPerformance::WorkerContextPerformance(ScriptExecutionContext* context)
+    : m_context(context)

[abarth-chromium, 2013/06/12 23:11:41]

Why do you need to hold m_context?

[James Simonsen, 2013/06/13 00:01:36]

Done.

 {
 }
 
-NavigatorDoNotTrack::~NavigatorDoNotTrack()
+WorkerContextPerformance::~WorkerContextPerformance()
 {
 }
 
-const char* NavigatorDoNotTrack::supplementName()
+const char* WorkerContextPerformance::supplementName()
 {
-    return "NavigatorDoNotTrack";
+    return "WorkerContextPerformance";
 }
 
-NavigatorDoNotTrack* NavigatorDoNotTrack::from(Navigator* navigator)
+WorkerContextPerformance* WorkerContextPerformance::from(ScriptExecutionContext* context)
 {
-    NavigatorDoNotTrack* supplement = static_cast<NavigatorDoNotTrack*>(Supplement<Navigator>::from(navigator, supplementName()));
+    WorkerContextPerformance* supplement = static_cast<WorkerContextPerformance*>(Supplement<ScriptExecutionContext>::from(context, supplementName()));
     if (!supplement) {
-        supplement = new NavigatorDoNotTrack(navigator->frame());
-        provideTo(navigator, supplementName(), adoptPtr(supplement));
+        supplement = new WorkerContextPerformance(context);
+        provideTo(context, supplementName(), adoptPtr(supplement));
     }
     return supplement;
 }
 
-String NavigatorDoNotTrack::doNotTrack(Navigator* navigator)
+WorkerPerformance* WorkerContextPerformance::performance(ScriptExecutionContext* context)
 {
-    return NavigatorDoNotTrack::from(navigator)->doNotTrack();
+    return from(context)->performance();

[abarth-chromium, 2013/06/12 23:11:41]

You can just pass context in here.

[James Simonsen, 2013/06/13 00:01:36]

Yep. Thanks.

 }
 
-String NavigatorDoNotTrack::doNotTrack()
+WorkerPerformance* WorkerContextPerformance::performance()
 {
-    return frame() ? frame()->loader()->client()->doNotTrackValue() : String();
+    if (!m_performance) {
+        ASSERT_WITH_SECURITY_IMPLICATION(m_context->isWorkerContext());
+        WorkerContext* workerContext = static_cast<WorkerContext*>(m_context);
+        m_performance = WorkerPerformance::create(workerContext);
+    }
+    return m_performance.get();
 }
 
 } // namespace WebCore