Initial implementation of bindings and basic classes for worklets.

third_party/WebKit/Source/bindings/core/v8/GlobalScopeScriptController.cpp

Index: third_party/WebKit/Source/bindings/core/v8/GlobalScopeScriptController.cpp
diff --git a/third_party/WebKit/Source/bindings/core/v8/WorkerScriptController.cpp b/third_party/WebKit/Source/bindings/core/v8/GlobalScopeScriptController.cpp
similarity index 73%
copy from third_party/WebKit/Source/bindings/core/v8/WorkerScriptController.cpp
copy to third_party/WebKit/Source/bindings/core/v8/GlobalScopeScriptController.cpp
index c8c4c4e037ce4d22ce49e5135f004d2bda5f80a4..8a01c0ac8a8e982d26ae035946c689f9932cdd29 100644
--- a/third_party/WebKit/Source/bindings/core/v8/WorkerScriptController.cpp
+++ b/third_party/WebKit/Source/bindings/core/v8/GlobalScopeScriptController.cpp
@@ -29,8 +29,7 @@
  */
 
 #include "config.h"
-
-#include "bindings/core/v8/WorkerScriptController.h"
+#include "bindings/core/v8/GlobalScopeScriptController.h"
 
 #include "bindings/core/v8/ScriptSourceCode.h"
 #include "bindings/core/v8/ScriptValue.h"
@@ -46,20 +45,19 @@
 #include "core/frame/DOMTimer.h"
 #include "core/inspector/ScriptCallStack.h"
 #include "core/inspector/WorkerThreadDebugger.h"
+#include "core/workers/AbstractGlobalScope.h"
 #include "core/workers/SharedWorkerGlobalScope.h"
-#include "core/workers/WorkerGlobalScope.h"
 #include "core/workers/WorkerObjectProxy.h"
-#include "core/workers/WorkerThread.h"
 #include "platform/heap/ThreadState.h"
 #include "public/platform/Platform.h"
 #include <v8.h>
 
 namespace blink {
 
-class WorkerScriptController::WorkerGlobalScopeExecutionState final {
+class GlobalScopeScriptController::GlobalScopeExecutionState final {
     STACK_ALLOCATED();
 public:
-    explicit WorkerGlobalScopeExecutionState(WorkerScriptController* controller)
+    explicit GlobalScopeExecutionState(GlobalScopeScriptController* controller)
         : hadException(false)
         , lineNumber(0)
         , columnNumber(0)
@@ -69,7 +67,7 @@ public:
         m_controller->m_globalScopeExecutionState = this;
     }
 
-    ~WorkerGlobalScopeExecutionState()
+    ~GlobalScopeExecutionState()
     {
         m_controller->m_globalScopeExecutionState = m_outerState;
     }
@@ -88,28 +86,23 @@ public:
     ScriptValue exception;
     RefPtrWillBeMember<ErrorEvent> m_errorEventFromImportedScript;
 
-    // A WorkerGlobalScopeExecutionState context is stack allocated by
-    // WorkerScriptController::evaluate(), with the contoller using it
+    // A GlobalScopeExecutionState context is stack allocated by
+    // GlobalScopeScriptController::evaluate(), with the contoller using it
     // during script evaluation. To handle nested evaluate() uses,
-    // WorkerGlobalScopeExecutionStates are chained together;
+    // GlobalScopeExecutionStates are chained together;
     // |m_outerState| keeps a pointer to the context object one level out
     // (or 0, if outermost.) Upon return from evaluate(), the
-    // WorkerScriptController's WorkerGlobalScopeExecutionState is popped
+    // GlobalScopeScriptController's GlobalScopeExecutionState is popped
     // and the previous one restored (see above dtor.)
     //
     // With Oilpan, |m_outerState| isn't traced. It'll be "up the stack"
     // and its fields will be traced when scanning the stack.
-    RawPtrWillBeMember<WorkerScriptController> m_controller;
-    WorkerGlobalScopeExecutionState* m_outerState;
+    RawPtrWillBeMember<GlobalScopeScriptController> m_controller;
+    GlobalScopeExecutionState* m_outerState;
 };
 
-PassOwnPtrWillBeRawPtr<WorkerScriptController> WorkerScriptController::create(WorkerGlobalScope* workerGlobalScope, v8::Isolate* isolate)
-{
-    return adoptPtrWillBeNoop(new WorkerScriptController(workerGlobalScope, isolate));
-}
-
-WorkerScriptController::WorkerScriptController(WorkerGlobalScope* workerGlobalScope, v8::Isolate* isolate)
-    : m_workerGlobalScope(workerGlobalScope)
+GlobalScopeScriptController::GlobalScopeScriptController(AbstractGlobalScope* abstractGlobalScope, v8::Isolate* isolate)
+    : m_abstractGlobalScope(abstractGlobalScope)
     , m_executionForbidden(false)
     , m_executionScheduledToTerminate(false)
     , m_rejectedPromises(RejectedPromises::create())
@@ -119,12 +112,12 @@ WorkerScriptController::WorkerScriptController(WorkerGlobalScope* workerGlobalSc
     m_world = DOMWrapperWorld::create(isolate, WorkerWorldId);
 }
 
-WorkerScriptController::~WorkerScriptController()
+GlobalScopeScriptController::~GlobalScopeScriptController()
 {
     ASSERT(!m_rejectedPromises);
 }
 
-void WorkerScriptController::dispose()
+void GlobalScopeScriptController::dispose()
 {
     m_rejectedPromises->dispose();
     m_rejectedPromises.release();
@@ -133,13 +126,13 @@ void WorkerScriptController::dispose()
 
     // The corresponding call to didStartRunLoop() is in WorkerThread::initialize().
     // See http://webkit.org/b/83104#c14 for why this is here.
-    m_workerGlobalScope->thread()->didStopRunLoop();
+    m_abstractGlobalScope->didStopRunLoop();
 
     if (isContextInitialized())
         m_scriptState->disposePerContextData();
 }
 
-bool WorkerScriptController::initializeContextIfNeeded()
+bool GlobalScopeScriptController::initializeContextIfNeeded()
 {
     v8::HandleScope handleScope(isolate());
 
@@ -158,29 +151,31 @@ bool WorkerScriptController::initializeContextIfNeeded()
     WorkerThreadDebugger::setContextDebugData(context);
 
     // Create a new JS object and use it as the prototype for the shadow global object.
-    const WrapperTypeInfo* wrapperTypeInfo = m_workerGlobalScope->wrapperTypeInfo();
-    v8::Local<v8::Function> workerGlobalScopeConstructor = m_scriptState->perContextData()->constructorForType(wrapperTypeInfo);
-    if (workerGlobalScopeConstructor.IsEmpty())
+    const WrapperTypeInfo* wrapperTypeInfo = wrapperTypeInfoForGlobalScope();
+
+    v8::Local<v8::Function> abstractGlobalScopeConstructor = m_scriptState->perContextData()->constructorForType(wrapperTypeInfo);
+    if (abstractGlobalScopeConstructor.IsEmpty())
         return false;
-    v8::Local<v8::Object> jsWorkerGlobalScope;
-    if (!V8ObjectConstructor::newInstance(isolate(), workerGlobalScopeConstructor).ToLocal(&jsWorkerGlobalScope)) {
+
+    v8::Local<v8::Object> jsGlobalScope;
+    if (!V8ObjectConstructor::newInstance(isolate(), abstractGlobalScopeConstructor).ToLocal(&jsGlobalScope)) {
         m_scriptState->disposePerContextData();
         return false;
     }
 
-    jsWorkerGlobalScope = V8DOMWrapper::associateObjectWithWrapper(isolate(), m_workerGlobalScope, wrapperTypeInfo, jsWorkerGlobalScope);
+    jsGlobalScope = associateGlobalScopeWithWrapper(isolate(), wrapperTypeInfo, jsGlobalScope);
 
     // Insert the object instance as the prototype of the shadow object.
     v8::Local<v8::Object> globalObject = v8::Local<v8::Object>::Cast(m_scriptState->context()->Global()->GetPrototype());
-    return v8CallBoolean(globalObject->SetPrototype(context, jsWorkerGlobalScope));
+    return v8CallBoolean(globalObject->SetPrototype(context, jsGlobalScope));
 }
 
-v8::Isolate* WorkerScriptController::isolate() const
+v8::Isolate* GlobalScopeScriptController::isolate() const
 {
-    return m_workerGlobalScope->thread()->isolate();
+    return m_abstractGlobalScope->isolate();
 }
 
-ScriptValue WorkerScriptController::evaluate(const String& script, const String& fileName, const TextPosition& scriptStartPosition, CachedMetadataHandler* cacheHandler, V8CacheOptions v8CacheOptions)
+ScriptValue GlobalScopeScriptController::evaluate(const String& script, const String& fileName, const TextPosition& scriptStartPosition, CachedMetadataHandler* cacheHandler, V8CacheOptions v8CacheOptions)
 {
     if (!initializeContextIfNeeded())
         return ScriptValue();
@@ -198,7 +193,7 @@ ScriptValue WorkerScriptController::evaluate(const String& script, const String&
     v8::Local<v8::Script> compiledScript;
     v8::MaybeLocal<v8::Value> maybeResult;
     if (v8Call(V8ScriptRunner::compileScript(script, fileName, String(), scriptStartPosition, isolate(), cacheHandler, SharableCrossOrigin, v8CacheOptions), compiledScript, block))
-        maybeResult = V8ScriptRunner::runCompiledScript(isolate(), compiledScript, m_workerGlobalScope);
+        maybeResult = V8ScriptRunner::runCompiledScript(isolate(), compiledScript, m_abstractGlobalScope);
 
     if (!block.CanContinue()) {
         forbidExecution();
@@ -232,12 +227,12 @@ ScriptValue WorkerScriptController::evaluate(const String& script, const String&
     return ScriptValue(m_scriptState.get(), result);
 }
 
-bool WorkerScriptController::evaluate(const ScriptSourceCode& sourceCode, RefPtrWillBeRawPtr<ErrorEvent>* errorEvent, CachedMetadataHandler* cacheHandler, V8CacheOptions v8CacheOptions)
+bool GlobalScopeScriptController::evaluate(const ScriptSourceCode& sourceCode, RefPtrWillBeRawPtr<ErrorEvent>* errorEvent, CachedMetadataHandler* cacheHandler, V8CacheOptions v8CacheOptions)
 {
     if (isExecutionForbidden())
         return false;
 
-    WorkerGlobalScopeExecutionState state(this);
+    GlobalScopeExecutionState state(this);
     evaluate(sourceCode.source(), sourceCode.url().string(), sourceCode.startPosition(), cacheHandler, v8CacheOptions);
     if (isExecutionForbidden())
         return false;
@@ -248,26 +243,26 @@ bool WorkerScriptController::evaluate(const ScriptSourceCode& sourceCode, RefPtr
                 *errorEvent = state.m_errorEventFromImportedScript.release();
                 return false;
             }
-            if (m_workerGlobalScope->shouldSanitizeScriptError(state.sourceURL, NotSharableCrossOrigin))
+            if (m_abstractGlobalScope->shouldSanitizeScriptError(state.sourceURL, NotSharableCrossOrigin))
                 *errorEvent = ErrorEvent::createSanitizedError(m_world.get());
             else
                 *errorEvent = ErrorEvent::create(state.errorMessage, state.sourceURL, state.lineNumber, state.columnNumber, m_world.get());
             V8ErrorHandler::storeExceptionOnErrorEventWrapper(m_scriptState.get(), errorEvent->get(), state.exception.v8Value(), m_scriptState->context()->Global());
         } else {
-            ASSERT(!m_workerGlobalScope->shouldSanitizeScriptError(state.sourceURL, NotSharableCrossOrigin));
+            ASSERT(!m_abstractGlobalScope->shouldSanitizeScriptError(state.sourceURL, NotSharableCrossOrigin));
             RefPtrWillBeRawPtr<ErrorEvent> event = nullptr;
             if (state.m_errorEventFromImportedScript)
                 event = state.m_errorEventFromImportedScript.release();
             else
                 event = ErrorEvent::create(state.errorMessage, state.sourceURL, state.lineNumber, state.columnNumber, m_world.get());
-            m_workerGlobalScope->reportException(event, 0, nullptr, NotSharableCrossOrigin);
+            m_abstractGlobalScope->reportException(event, 0, nullptr, NotSharableCrossOrigin);
         }
         return false;
     }
     return true;
 }
 
-void WorkerScriptController::willScheduleExecutionTermination()
+void GlobalScopeScriptController::willScheduleExecutionTermination()
 {
     // The mutex provides a memory barrier to ensure that once
     // termination is scheduled, isExecutionTerminating will
@@ -276,31 +271,31 @@ void WorkerScriptController::willScheduleExecutionTermination()
     m_executionScheduledToTerminate = true;
 }
 
-bool WorkerScriptController::isExecutionTerminating() const
+bool GlobalScopeScriptController::isExecutionTerminating() const
 {
     // See comments in willScheduleExecutionTermination regarding mutex usage.
     MutexLocker locker(m_scheduledTerminationMutex);
     return m_executionScheduledToTerminate;
 }
 
-void WorkerScriptController::forbidExecution()
+void GlobalScopeScriptController::forbidExecution()
 {
-    ASSERT(m_workerGlobalScope->isContextThread());
+    ASSERT(m_abstractGlobalScope->isContextThread());
     m_executionForbidden = true;
 }
 
-bool WorkerScriptController::isExecutionForbidden() const
+bool GlobalScopeScriptController::isExecutionForbidden() const
 {
-    ASSERT(m_workerGlobalScope->isContextThread());
+    ASSERT(m_abstractGlobalScope->isContextThread());
     return m_executionForbidden;
 }
 
-void WorkerScriptController::disableEval(const String& errorMessage)
+void GlobalScopeScriptController::disableEval(const String& errorMessage)
 {
     m_disableEvalPending = errorMessage;
 }
 
-void WorkerScriptController::rethrowExceptionFromImportedScript(PassRefPtrWillBeRawPtr<ErrorEvent> errorEvent, ExceptionState& exceptionState)
+void GlobalScopeScriptController::rethrowExceptionFromImportedScript(PassRefPtrWillBeRawPtr<ErrorEvent> errorEvent, ExceptionState& exceptionState)
 {
     const String& errorMessage = errorEvent->message();
     if (m_globalScopeExecutionState)
@@ -308,9 +303,9 @@ void WorkerScriptController::rethrowExceptionFromImportedScript(PassRefPtrWillBe
     exceptionState.rethrowV8Exception(V8ThrowException::createGeneralError(isolate(), errorMessage));
 }
 
-DEFINE_TRACE(WorkerScriptController)
+DEFINE_TRACE(GlobalScopeScriptController)
 {
-    visitor->trace(m_workerGlobalScope);
+    visitor->trace(m_abstractGlobalScope);
     visitor->trace(m_rejectedPromises);
 }