Remove DOMWindowProperty from Performance

We're deprecating DOMWindowProperty, which is equivalent to ContextLifecycleObserver.
This CL does the replacement for Performance.

BUG=610176

Review-Url: https://codereview.chromium.org/2569153002
Cr-Commit-Position: refs/heads/master@{#438155}

third_party/WebKit/Source/core/timing/Performance.cpp

@@ -100,16 +100,16 @@ static double toTimeOrigin(LocalFrame* frame) {
 }
 
 Performance::Performance(LocalFrame* frame)
-    : PerformanceBase(toTimeOrigin(frame)), DOMWindowProperty(frame) {}
+    : PerformanceBase(toTimeOrigin(frame)),
+      ContextLifecycleObserver(frame ? frame->document() : nullptr) {}
 
 Performance::~Performance() {
   if (frame())
     frame()->performanceMonitor()->unsubscribeAll(this);
 }
 
-void Performance::frameDestroyed() {
+void Performance::contextDestroyed() {
   frame()->performanceMonitor()->unsubscribeAll(this);
-  DOMWindowProperty::frameDestroyed();
 }
 
 ExecutionContext* Performance::getExecutionContext() const {
@@ -161,7 +161,7 @@ ScriptValue Performance::toJSONForBinding(ScriptState* scriptState) const {
 DEFINE_TRACE(Performance) {
   visitor->trace(m_navigation);
   visitor->trace(m_timing);
-  DOMWindowProperty::trace(visitor);
+  ContextLifecycleObserver::trace(visitor);
   PerformanceBase::trace(visitor);
   PerformanceMonitor::Client::trace(visitor);
 }

third_party/WebKit/Source/core/timing/Performance.h

@@ -33,7 +33,7 @@
 #define Performance_h
 
 #include "core/CoreExport.h"
-#include "core/frame/DOMWindowProperty.h"
+#include "core/dom/ContextLifecycleObserver.h"
 #include "core/frame/PerformanceMonitor.h"
 #include "core/timing/MemoryInfo.h"
 #include "core/timing/PerformanceBase.h"
@@ -46,7 +46,7 @@ class ScriptState;
 class ScriptValue;
 
 class CORE_EXPORT Performance final : public PerformanceBase,
-                                      public DOMWindowProperty,
+                                      public ContextLifecycleObserver,
                                       public PerformanceMonitor::Client {
   DEFINE_WRAPPERTYPEINFO();
   USING_GARBAGE_COLLECTED_MIXIN(Performance);
@@ -73,8 +73,8 @@ class CORE_EXPORT Performance final : public PerformanceBase,
  private:
   explicit Performance(LocalFrame*);
 
-  // DOMWindowProperty overrides.
-  void frameDestroyed() override;
+  // ContextLifecycleObserver overrides.
+  void contextDestroyed() override;
 
   static std::pair<String, DOMWindow*> sanitizedAttribution(
       ExecutionContext*,