First version of PerformanceObserver

Source/bindings/core/v8/V8PerformanceObserverCallback.cpp

Index: Source/bindings/core/v8/V8PerformanceObserverCallback.cpp
diff --git a/Source/bindings/core/v8/V8PerformanceObserverCallback.cpp b/Source/bindings/core/v8/V8PerformanceObserverCallback.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..6456ab880d7fe0dee5279cda133e8e02e2c95777
--- /dev/null
+++ b/Source/bindings/core/v8/V8PerformanceObserverCallback.cpp
@@ -0,0 +1,64 @@
+// Copyright 2014 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.
+
+// This file has been auto-generated by code_generator_v8.py. DO NOT MODIFY!
+
+#include "config.h"
+#include "V8PerformanceObserverCallback.h"
+
+#include "bindings/core/v8/ScriptController.h"
+#include "bindings/core/v8/V8Binding.h"
+#include "bindings/core/v8/V8PerformanceObserver.h"
+#include "bindings/core/v8/V8PerformanceObserverEntryList.h"
+#include "core/dom/ExecutionContext.h"
+#include "wtf/Assertions.h"
+#include "wtf/GetPtr.h"
+#include "wtf/RefPtr.h"
+
+namespace blink {
+
+V8PerformanceObserverCallback::V8PerformanceObserverCallback(v8::Local<v8::Function> callback, ScriptState* scriptState)
+    : ActiveDOMCallback(scriptState->executionContext())
+    , m_scriptState(scriptState)
+{
+    m_callback.set(scriptState->isolate(), callback);
+}
+
+V8PerformanceObserverCallback::~V8PerformanceObserverCallback()
+{
+}
+
+DEFINE_TRACE(V8PerformanceObserverCallback)
+{
+    PerformanceObserverCallback::trace(visitor);
+    ActiveDOMCallback::trace(visitor);
+}
+
+void V8PerformanceObserverCallback::handleEvent(PerformanceObserverEntryList* entries, PerformanceObserver* observer)
+{
+    if (!canInvokeCallback())
+        return;
+
+    if (!m_scriptState->contextIsValid())
+        return;
+
+    ScriptState::Scope scope(m_scriptState.get());
+    v8::Local<v8::Value> entriesHandle = toV8(entries, m_scriptState->context()->Global(), m_scriptState->isolate());
+    if (entriesHandle.IsEmpty()) {
+        if (!isScriptControllerTerminating())
+            CRASH();
+        return;
+    }
+    v8::Local<v8::Value> observerHandle = toV8(observer, m_scriptState->context()->Global(), m_scriptState->isolate());
+    if (observerHandle.IsEmpty()) {
+        if (!isScriptControllerTerminating())
+            CRASH();
+        return;
+    }
+    v8::Local<v8::Value> argv[] = { entriesHandle, observerHandle };
+
+    ScriptController::callFunction(m_scriptState->executionContext(), m_callback.newLocal(m_scriptState->isolate()), m_scriptState->context()->Global(), 2, argv, m_scriptState->isolate());

[esprehn, 2015/07/18 22:24:15]

ditto about the code generator, we should really be able to generate this stuff
for you, especially since we have two of them now.

+}
+
+} // namespace blink