Remove unused V8 integration code in Sky

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

Index: sky/engine/bindings/core/v8/ScriptController.cpp
diff --git a/sky/engine/bindings/core/v8/ScriptController.cpp b/sky/engine/bindings/core/v8/ScriptController.cpp
deleted file mode 100644
index 6ec78c1cbdea8afff92983c328290e038993990d..0000000000000000000000000000000000000000
--- a/sky/engine/bindings/core/v8/ScriptController.cpp
+++ /dev/null
@@ -1,301 +0,0 @@
-/*
- * Copyright (C) 2008, 2009 Google Inc. All rights reserved.
- * Copyright (C) 2009 Apple Inc. All rights reserved.
- * Copyright (C) 2014 Opera Software ASA. 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/ScriptController.h"
-
-#include "bindings/core/v8/V8Event.h"
-#include "bindings/core/v8/V8HTMLElement.h"
-#include "bindings/core/v8/V8Window.h"
-#include "sky/engine/bindings/core/v8/BindingSecurity.h"
-#include "sky/engine/bindings/core/v8/ScriptCallStackFactory.h"
-#include "sky/engine/bindings/core/v8/ScriptSourceCode.h"
-#include "sky/engine/bindings/core/v8/ScriptValue.h"
-#include "sky/engine/bindings/core/v8/V8Binding.h"
-#include "sky/engine/bindings/core/v8/V8GCController.h"
-#include "sky/engine/bindings/core/v8/V8PerContextData.h"
-#include "sky/engine/bindings/core/v8/V8ScriptRunner.h"
-#include "sky/engine/bindings/core/v8/WindowProxy.h"
-#include "sky/engine/core/app/Module.h"
-#include "sky/engine/core/dom/Document.h"
-#include "sky/engine/core/dom/Node.h"
-#include "sky/engine/core/events/Event.h"
-#include "sky/engine/core/events/EventListener.h"
-#include "sky/engine/core/frame/LocalDOMWindow.h"
-#include "sky/engine/core/frame/LocalFrame.h"
-#include "sky/engine/core/frame/Settings.h"
-#include "sky/engine/core/html/imports/HTMLImportChild.h"
-#include "sky/engine/core/html/imports/HTMLImportLoader.h"
-#include "sky/engine/core/html/parser/HTMLDocumentParser.h"
-#include "sky/engine/core/loader/FrameLoaderClient.h"
-#include "sky/engine/platform/NotImplemented.h"
-#include "sky/engine/platform/TraceEvent.h"
-#include "sky/engine/platform/Widget.h"
-#include "sky/engine/public/platform/Platform.h"
-#include "sky/engine/core/inspector/ScriptCallStack.h"
-#include "sky/engine/wtf/CurrentTime.h"
-#include "sky/engine/wtf/StdLibExtras.h"
-#include "sky/engine/wtf/StringExtras.h"
-#include "sky/engine/wtf/text/CString.h"
-#include "sky/engine/wtf/text/StringBuilder.h"
-#include "sky/engine/wtf/text/TextPosition.h"
-
-namespace blink {
-
-bool ScriptController::canAccessFromCurrentOrigin(LocalFrame *frame)
-{
-    if (!frame)
-        return false;
-    v8::Isolate* isolate = toIsolate(frame);
-    return !isolate->InContext() || BindingSecurity::shouldAllowAccessToFrame(isolate, frame);
-}
-
-ScriptController::ScriptController(LocalFrame* frame)
-    : m_frame(frame)
-    , m_sourceURL(0)
-    , m_isolate(v8::Isolate::GetCurrent())
-    , m_windowProxy(WindowProxy::create(frame, DOMWrapperWorld::mainWorld(), m_isolate))
-{
-}
-
-ScriptController::~ScriptController()
-{
-    // WindowProxy::clearForClose() must be invoked before destruction starts.
-    ASSERT(!m_windowProxy->isContextInitialized());
-}
-
-void ScriptController::clearForClose()
-{
-    double start = currentTime();
-    m_windowProxy->clearForClose();
-    for (IsolatedWorldMap::iterator iter = m_isolatedWorlds.begin(); iter != m_isolatedWorlds.end(); ++iter)
-        iter->value->clearForClose();
-    blink::Platform::current()->histogramCustomCounts("WebCore.ScriptController.clearForClose", (currentTime() - start) * 1000, 0, 10000, 50);
-}
-
-v8::Local<v8::Value> ScriptController::callFunction(v8::Handle<v8::Function> function, v8::Handle<v8::Value> receiver, int argc, v8::Handle<v8::Value> info[])
-{
-    // Keep LocalFrame (and therefore ScriptController) alive.
-    RefPtr<LocalFrame> protect(m_frame);
-    return ScriptController::callFunction(m_frame->document(), function, receiver, argc, info, m_isolate);
-}
-
-v8::Local<v8::Value> ScriptController::callFunction(ExecutionContext* context, v8::Handle<v8::Function> function, v8::Handle<v8::Value> receiver, int argc, v8::Handle<v8::Value> info[], v8::Isolate* isolate)
-{
-    return V8ScriptRunner::callFunction(function, context, receiver, argc, info, isolate);
-}
-
-v8::Local<v8::Value> ScriptController::executeScriptAndReturnValue(v8::Handle<v8::Context> context, const ScriptSourceCode& source)
-{
-    v8::Local<v8::Value> result;
-    {
-        V8CacheOptions v8CacheOptions(V8CacheOptionsOff);
-        if (m_frame->settings())
-            v8CacheOptions = m_frame->settings()->v8CacheOptions();
-
-        // Isolate exceptions that occur when compiling and executing
-        // the code. These exceptions should not interfere with
-        // javascript code we might evaluate from C++ when returning
-        // from here.
-        v8::TryCatch tryCatch;
-        tryCatch.SetVerbose(true);
-
-        v8::Handle<v8::Script> script = V8ScriptRunner::compileScript(source, m_isolate, v8CacheOptions);
-
-        // Keep LocalFrame (and therefore ScriptController) alive.
-        RefPtr<LocalFrame> protect(m_frame);
-        result = V8ScriptRunner::runCompiledScript(script, m_frame->document(), m_isolate);
-        ASSERT(!tryCatch.HasCaught() || result.IsEmpty());
-    }
-
-    return result;
-}
-
-bool ScriptController::initializeMainWorld()
-{
-    if (m_windowProxy->isContextInitialized())
-        return false;
-    return windowProxy(DOMWrapperWorld::mainWorld())->isContextInitialized();
-}
-
-WindowProxy* ScriptController::existingWindowProxy(DOMWrapperWorld& world)
-{
-    if (world.isMainWorld())
-        return m_windowProxy->isContextInitialized() ? m_windowProxy.get() : 0;
-    return 0;
-}
-
-WindowProxy* ScriptController::windowProxy(DOMWrapperWorld& world)
-{
-    m_windowProxy->initializeIfNeeded();
-    return m_windowProxy.get();
-}
-
-V8Extensions& ScriptController::registeredExtensions()
-{
-    DEFINE_STATIC_LOCAL(V8Extensions, extensions, ());
-    return extensions;
-}
-
-void ScriptController::registerExtensionIfNeeded(v8::Extension* extension)
-{
-    const V8Extensions& extensions = registeredExtensions();
-    for (size_t i = 0; i < extensions.size(); ++i) {
-        if (extensions[i] == extension)
-            return;
-    }
-    v8::RegisterExtension(extension);
-    registeredExtensions().append(extension);
-}
-
-void ScriptController::clearWindowProxy()
-{
-    double start = currentTime();
-    // V8 binding expects ScriptController::clearWindowProxy only be called
-    // when a frame is loading a new page. This creates a new context for the new page.
-
-    m_windowProxy->clearForNavigation();
-    for (IsolatedWorldMap::iterator iter = m_isolatedWorlds.begin(); iter != m_isolatedWorlds.end(); ++iter)
-        iter->value->clearForNavigation();
-    blink::Platform::current()->histogramCustomCounts("WebCore.ScriptController.clearWindowProxy", (currentTime() - start) * 1000, 0, 10000, 50);
-}
-
-void ScriptController::setCaptureCallStackForUncaughtExceptions(bool value)
-{
-    v8::V8::SetCaptureStackTraceForUncaughtExceptions(value, ScriptCallStack::maxCallStackSizeToCapture, stackTraceOptions);
-}
-
-void ScriptController::setWorldDebugId(int debuggerId)
-{
-    ASSERT(debuggerId > 0);
-    if (!m_windowProxy || !m_windowProxy->isContextInitialized())
-        return;
-    v8::HandleScope scope(m_isolate);
-    v8::Local<v8::Context> context = m_windowProxy->context();
-    V8PerContextDebugData::setContextDebugData(context, "page", debuggerId);
-}
-
-void ScriptController::updateDocument()
-{
-    // For an uninitialized main window windowProxy, do not incur the cost of context initialization.
-    if (!m_windowProxy->isGlobalInitialized())
-        return;
-
-    if (!initializeMainWorld())
-        windowProxy(DOMWrapperWorld::mainWorld())->updateDocument();
-}
-
-void ScriptController::executeScriptInMainWorld(const String& script)
-{
-    v8::HandleScope handleScope(m_isolate);
-    evaluateScriptInMainWorld(ScriptSourceCode(script));
-}
-
-void ScriptController::executeScriptInMainWorld(const ScriptSourceCode& sourceCode)
-{
-    v8::HandleScope handleScope(m_isolate);
-    evaluateScriptInMainWorld(sourceCode);
-}
-
-v8::Local<v8::Value> ScriptController::executeScriptInMainWorldAndReturnValue(const ScriptSourceCode& sourceCode)
-{
-    return evaluateScriptInMainWorld(sourceCode);
-}
-
-v8::Local<v8::Value> ScriptController::evaluateScriptInMainWorld(const ScriptSourceCode& sourceCode)
-{
-    String sourceURL = sourceCode.url();
-    const String* savedSourceURL = m_sourceURL;
-    m_sourceURL = &sourceURL;
-
-    v8::EscapableHandleScope handleScope(m_isolate);
-    v8::Handle<v8::Context> context = toV8Context(m_frame, DOMWrapperWorld::mainWorld());
-    if (context.IsEmpty())
-        return v8::Local<v8::Value>();
-
-    ScriptState* scriptState = ScriptState::from(context);
-    ScriptState::Scope scope(scriptState);
-
-    RefPtr<LocalFrame> protect(m_frame);
-
-    v8::Local<v8::Value> object = executeScriptAndReturnValue(scriptState->context(), sourceCode);
-    m_sourceURL = savedSourceURL;
-
-    if (object.IsEmpty())
-        return v8::Local<v8::Value>();
-
-    return handleScope.Escape(object);
-}
-
-void ScriptController::executeModuleScript(AbstractModule& module, const String& source, const TextPosition& textPosition)
-{
-    v8::HandleScope handleScope(m_isolate);
-    v8::Handle<v8::Context> context = toV8Context(m_frame, DOMWrapperWorld::mainWorld());
-    if (context.IsEmpty())
-        return;
-
-    ScriptState* scriptState = ScriptState::from(context);
-    ScriptState::Scope scope(scriptState);
-
-    RefPtr<LocalFrame> protect(m_frame);
-
-    v8::TryCatch tryCatch;
-    tryCatch.SetVerbose(true);
-
-    V8ScriptModule scriptModule;
-    scriptModule.resourceName = module.url();
-    scriptModule.textPosition = textPosition;
-    scriptModule.moduleObject = toV8(&module, context->Global(), m_isolate);
-    scriptModule.source = source;
-
-    if (HTMLImport* parent = module.document()->import()) {
-        for (HTMLImportChild* child = static_cast<HTMLImportChild*>(parent->firstChild());
-             child; child = static_cast<HTMLImportChild*>(child->next())) {
-            if (Element* link = child->link()) {
-                String name = link->getAttribute(HTMLNames::asAttr);
-                if (!name.isEmpty()) {
-                    scriptModule.formalDependencies.append(name);
-                    v8::Handle<v8::Value> actual;
-                    if (Module* childModule = child->module())
-                        actual = childModule->exports(scriptState).v8Value();
-                    if (actual.IsEmpty())
-                        actual = v8::Undefined(m_isolate);
-                    scriptModule.resolvedDependencies.append(actual);
-                }
-            }
-        }
-    }
-
-    V8ScriptRunner::runModule(m_isolate, m_frame->document(), scriptModule);
-}
-
-} // namespace blink