Remove unused V8 integration code in Sky

sky/engine/bindings/core/v8/V8AbstractEventListener.cpp

Index: sky/engine/bindings/core/v8/V8AbstractEventListener.cpp
diff --git a/sky/engine/bindings/core/v8/V8AbstractEventListener.cpp b/sky/engine/bindings/core/v8/V8AbstractEventListener.cpp
deleted file mode 100644
index 9fff510377100034169c439ee640639e33b30e3d..0000000000000000000000000000000000000000
--- a/sky/engine/bindings/core/v8/V8AbstractEventListener.cpp
+++ /dev/null
@@ -1,133 +0,0 @@
-/*
- * Copyright (C) 2006, 2007, 2008, 2009 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
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * 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.
- */
-
-#include "sky/engine/config.h"
-#include "sky/engine/bindings/core/v8/V8AbstractEventListener.h"
-
-#include "bindings/core/v8/V8Event.h"
-#include "bindings/core/v8/V8EventTarget.h"
-#include "sky/engine/bindings/core/v8/V8Binding.h"
-#include "sky/engine/bindings/core/v8/V8EventListenerList.h"
-#include "sky/engine/bindings/core/v8/V8HiddenValue.h"
-#include "sky/engine/core/dom/Document.h"
-#include "sky/engine/core/events/Event.h"
-#include "sky/engine/core/inspector/InspectorCounters.h"
-
-namespace blink {
-
-V8AbstractEventListener::V8AbstractEventListener(ScriptState* scriptState)
-    : EventListener()
-    , m_scriptState(scriptState)
-    , m_isolate(scriptState->isolate())
-{
-    if (isMainThread())
-        InspectorCounters::incrementCounter(InspectorCounters::JSEventListenerCounter);
-}
-
-V8AbstractEventListener::V8AbstractEventListener(v8::Isolate* isolate)
-    : EventListener()
-    , m_scriptState(nullptr)
-    , m_isolate(isolate)
-{
-    if (isMainThread())
-        InspectorCounters::incrementCounter(InspectorCounters::JSEventListenerCounter);
-}
-
-V8AbstractEventListener::~V8AbstractEventListener()
-{
-    if (!m_listener.isEmpty()) {
-        v8::HandleScope scope(m_isolate);
-        V8EventListenerList::clearWrapper(m_listener.newLocal(isolate()), isolate());
-    }
-    if (isMainThread())
-        InspectorCounters::decrementCounter(InspectorCounters::JSEventListenerCounter);
-}
-
-void V8AbstractEventListener::handleEvent(ExecutionContext*, Event* event)
-{
-    if (scriptState()->contextIsEmpty())
-        return;
-    if (!scriptState()->executionContext())
-        return;
-
-    ASSERT(event);
-
-    // The callback function on XMLHttpRequest can clear the event listener and destroys 'this' object. Keep a local reference to it.
-    // See issue 889829.
-    RefPtr<V8AbstractEventListener> protect(this);
-
-    ScriptState::Scope scope(scriptState());
-
-    // Get the V8 wrapper for the event object.
-    v8::Handle<v8::Value> jsEvent = toV8(event, scriptState()->context()->Global(), isolate());
-    if (jsEvent.IsEmpty())
-        return;
-    invokeEventHandler(event, v8::Local<v8::Value>::New(isolate(), jsEvent));
-}
-
-void V8AbstractEventListener::setListenerObject(v8::Handle<v8::Object> listener)
-{
-    m_listener.set(isolate(), listener);
-    m_listener.setWeak(this, &setWeakCallback);
-}
-
-void V8AbstractEventListener::invokeEventHandler(Event* event, v8::Local<v8::Value> jsEvent)
-{
-    if (jsEvent.IsEmpty())
-        return;
-
-    ASSERT(!scriptState()->contextIsEmpty());
-
-    // Catch exceptions thrown in the event handler so they do not propagate to javascript code that caused the event to fire.
-    v8::TryCatch tryCatch;
-    tryCatch.SetVerbose(true);
-
-    callListenerFunction(jsEvent, event);
-}
-
-v8::Local<v8::Object> V8AbstractEventListener::getReceiverObject(Event* event)
-{
-    v8::Local<v8::Object> listener = m_listener.newLocal(isolate());
-    if (!m_listener.isEmpty() && !listener->IsFunction())
-        return listener;
-
-    EventTarget* target = event->currentTarget();
-    v8::Handle<v8::Value> value = toV8(target, scriptState()->context()->Global(), isolate());
-    if (value.IsEmpty())
-        return v8::Local<v8::Object>();
-    return v8::Local<v8::Object>::New(isolate(), v8::Handle<v8::Object>::Cast(value));
-}
-
-void V8AbstractEventListener::setWeakCallback(const v8::WeakCallbackData<v8::Object, V8AbstractEventListener> &data)
-{
-    data.GetParameter()->m_listener.clear();
-}
-
-} // namespace blink