Fix ExceptionState with empty context.

Since NonThrowableExceptionState, TrackExceptionState, NoExceptionStateAssertionChecker and IgnorableExceptionState create no wrapper, we don't need to fix those exception state with empty context.

We need to fix ExceptionState. To ensure that all ExceptionStates are fixed, added ASSERT to ExceptionState::throwSecurityError and ExceptionState::throwDOMException.

BUG=369451

Review URL: https://codereview.chromium.org/311733003

git-svn-id: svn://svn.chromium.org/blink/trunk@175463 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/Source/bindings/v8/ExceptionState.cpp

@@ -47,6 +47,7 @@ void ExceptionState::throwDOMException(const ExceptionCode& ec, const String& me
 {
     ASSERT(ec);
     ASSERT(m_isolate);
+    ASSERT(!m_creationContext.IsEmpty());
 
     // SecurityError is thrown via ::throwSecurityError, and _careful_ consideration must be given to the data exposed to JavaScript via the 'sanitizedMessage'.
     ASSERT(ec != SecurityError);
@@ -60,6 +61,7 @@ void ExceptionState::throwDOMException(const ExceptionCode& ec, const String& me
 void ExceptionState::throwSecurityError(const String& sanitizedMessage, const String& unsanitizedMessage)
 {
     ASSERT(m_isolate);
+    ASSERT(!m_creationContext.IsEmpty());
     m_code = SecurityError;
     String finalSanitized = addExceptionContext(sanitizedMessage);
     m_message = finalSanitized;

third_party/WebKit/Source/bindings/v8/V8Initializer.cpp

@@ -142,7 +142,7 @@ static void failedAccessCheckCallbackInMainThread(v8::Local<v8::Object> host, v8
     DOMWindow* targetWindow = target->domWindow();
 
     // FIXME: We should modify V8 to pass in more contextual information (context, property, and object).
-    ExceptionState exceptionState(ExceptionState::UnknownContext, 0, 0, v8::Handle<v8::Object>(), isolate);
+    ExceptionState exceptionState(ExceptionState::UnknownContext, 0, 0, isolate->GetCurrentContext()->Global(), isolate);
     exceptionState.throwSecurityError(targetWindow->sanitizedCrossDomainAccessErrorMessage(callingDOMWindow(isolate)), targetWindow->crossDomainAccessErrorMessage(callingDOMWindow(isolate)));
     exceptionState.throwIfNeeded();
 }