Added Dartium changes onto 45.0.2454.104

Source/bindings/core/dart/DartInjectedScriptHostHelper.cpp

+// Copyright 2013, 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 "config.h"
+#include "bindings/core/dart/DartInjectedScriptHostHelper.h"
+
+#include "bindings/core/dart/DartController.h"
+#include "bindings/core/dart/DartHandleProxy.h"
+#include "bindings/core/dart/DartScriptState.h"
+#include "bindings/core/dart/V8Converter.h"
+#include "bindings/core/v8/V8HiddenValue.h"
+
+namespace blink {
+
+/**
+ * Returns true if the expression passed in my args was evaluated as Dart code.
+ */
+v8::Handle<v8::Value> DartInjectedScriptHostHelper::evaluateIfDartContext(v8::Handle<v8::Object> v8InjectedScriptHost, v8::Handle<v8::String> expression)
+{
+    v8::Isolate* v8Isolate = v8::Isolate::GetCurrent();
+    ASSERT(!v8Isolate->GetCurrentContext().IsEmpty());
+
+    ScriptState* currentScriptState = 0;
+    v8::Local<v8::Value> scriptStateWrapper = V8HiddenValue::getHiddenValue(v8::Isolate::GetCurrent(), v8InjectedScriptHost, V8HiddenValue::scriptState(v8Isolate));
+    if (!scriptStateWrapper.IsEmpty() && scriptStateWrapper->IsExternal())
+        currentScriptState = static_cast<ScriptState*>(v8::External::Cast(*scriptStateWrapper)->Value());
+    else
+        currentScriptState = V8ScriptState::current(v8Isolate);
+
+    ExecutionContext* ALLOW_UNUSED scriptExecutionContext = currentScriptState->executionContext();
+    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 blink