Model each Dart library as its own ScriptState when devtools are enabled.

Source/bindings/dart/DartInjectedScriptHost.cpp

Index: Source/bindings/dart/DartInjectedScriptHost.cpp
diff --git a/Source/bindings/dart/custom/DartErrorEventCustom.cpp b/Source/bindings/dart/DartInjectedScriptHost.cpp
similarity index 51%
copy from Source/bindings/dart/custom/DartErrorEventCustom.cpp
copy to Source/bindings/dart/DartInjectedScriptHost.cpp
index 06a5c3a77c8e5d7e68d459ee9ac8f734cc3b4eba..a095836d6f2d9aab91683982628c871f29219e01 100644
--- a/Source/bindings/dart/custom/DartErrorEventCustom.cpp
+++ b/Source/bindings/dart/DartInjectedScriptHost.cpp
@@ -1,4 +1,4 @@
-// Copyright 2011, Google Inc.
+// Copyright 2013, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -28,37 +28,42 @@
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #include "config.h"
-#include "DartErrorEvent.h"
+#include "DartInjectedScriptHost.h"
 
-#include "DartBlob.h"
-#include "DartWindow.h"
+#include "bindings/dart/DartController.h"
+#include "bindings/dart/DartHandleProxy.h"
+#include "bindings/dart/DartScriptState.h"
 #include "bindings/dart/V8Converter.h"
-#include "bindings/v8/ScriptController.h"
+#include "bindings/v8/V8HiddenPropertyName.h"
 
 namespace WebCore {
 
-namespace DartErrorEventInternal {
-
-void errorGetter(Dart_NativeArguments args)
+/**
+ * Returns true if the expression passed in my args was evaluated as Dart code.
+ */
+v8::Handle<v8::Value> DartInjectedScriptHost::evaluateIfDartContext(v8::Handle<v8::Object> v8InjectedScriptHost, v8::Handle<v8::String> expression)
 {
-    // Tricky to implement because V8 appears to implement by setting a V8HiddenValue
-    /*
-    {
-    v8::Handle<v8::Value> error = info.Holder()->GetHiddenValue(V8HiddenPropertyName::error());
+    ASSERT(!v8::Context::GetCurrent().IsEmpty());
 
-    if (!error.IsEmpty()) {
-        v8SetReturnValue(info, error);
-        return;
-    }
-        ErrorEvent* receiver = DartDOMWrapper::receiver< ErrorEvent >(args);
+    ScriptState* currentScriptState = 0;
+    v8::Local<v8::Value> scriptStateWrapper = v8InjectedScriptHost->GetHiddenValue(V8HiddenPropertyName::scriptState());
+    if (!scriptStateWrapper.IsEmpty() && scriptStateWrapper->IsExternal())
+        currentScriptState = static_cast<ScriptState*>(v8::External::Cast(*scriptStateWrapper)->Value());
+    else
+        currentScriptState = ScriptState::current();
 
-        DartUtilities::setDartStringReturnValue(args, receiver->error());
-        return;
-    }
-    */
-    DART_UNIMPLEMENTED();
-}
+    ScriptExecutionContext* scriptExecutionContext = currentScriptState->scriptExecutionContext();
+    ASSERT(scriptExecutionContext);
 
-}
+    if (!currentScriptState->isJavaScript()) {
+        DartScriptState* dartScriptState = static_cast<DartScriptState*>(currentScriptState);
+        DartIsolateScope scope(dartScriptState->isolate());
+        DartApiScope apiScope;
 
+        Dart_Handle target = Dart_GetLibraryFromId(dartScriptState->libraryId());
+        return DartHandleProxy::evaluate(target, V8Converter::stringToDart(expression), Dart_Null());
+    }
+    return v8::Handle<v8::Value>();
 }
+
+} // namespace WebCore