First version of PerformanceObserver

Source/core/timing/PerformanceObserverEntryList.cpp

Index: Source/core/timing/PerformanceObserverEntryList.cpp
diff --git a/Source/core/timing/PerformanceObserverEntryList.cpp b/Source/core/timing/PerformanceObserverEntryList.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..97f90aa4e941343b6da0bc0909ea17fb7a82ed64
--- /dev/null
+++ b/Source/core/timing/PerformanceObserverEntryList.cpp
@@ -0,0 +1,74 @@
+// 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 "config.h"
+#include "core/timing/PerformanceObserverEntryList.h"
+
+#include "core/timing/PerformanceEntry.h"
+#include "wtf/StdLibExtras.h"
+
+namespace blink {
+
+PerformanceObserverEntryList::PerformanceObserverEntryList(const PerformanceEntryVector& entryVector)
+    : m_performanceEntries(entryVector)
+{
+}
+
+PerformanceObserverEntryList::~PerformanceObserverEntryList()
+{
+}
+
+
+PerformanceEntryVector PerformanceObserverEntryList::getEntries() const
+{
+    PerformanceEntryVector entries;
+
+    entries.appendVector(m_performanceEntries);
+
+    std::sort(entries.begin(), entries.end(), PerformanceEntry::startTimeCompareLessThan);
+    return entries;
+}
+
+PerformanceEntryVector PerformanceObserverEntryList::getEntriesByType(const String& entryType)
+{
+    PerformanceEntryVector entries;
+    PerformanceEntry::EntryType type = PerformanceEntry::toEntryTypeEnum(entryType);
+
+    if (type == PerformanceEntry::Invalid)
+        return entries;
+
+    for (const auto& entry : m_performanceEntries) {
+        if (entry->entryTypeEnum() == type) {
+            entries.append(entry);
+        }
+    }
+
+    std::sort(entries.begin(), entries.end(), PerformanceEntry::startTimeCompareLessThan);
+    return entries;
+}
+
+PerformanceEntryVector PerformanceObserverEntryList::getEntriesByName(const String& name, const String& entryType)
+{
+    PerformanceEntryVector entries;
+    PerformanceEntry::EntryType type = PerformanceEntry::toEntryTypeEnum(entryType);
+
+    if (!entryType.isNull() && type == PerformanceEntry::Invalid)
+        return entries;
+
+    for (const auto& entry : m_performanceEntries) {
+        if (entry->name() == name && (entryType.isNull() || type == entry->entryTypeEnum())) {
+            entries.append(entry);
+        }
+    }
+
+    std::sort(entries.begin(), entries.end(), PerformanceEntry::startTimeCompareLessThan);
+    return entries;
+}
+
+DEFINE_TRACE(PerformanceObserverEntryList)
+{
+    visitor->trace(m_performanceEntries);
+}
+
+} // namespace blink