Implement File constructor.

Source/bindings/v8/custom/V8BlobCustomHelpers.h

Index: Source/bindings/v8/custom/V8BlobCustomHelpers.h
diff --git a/Source/bindings/v8/ScriptPromise.cpp b/Source/bindings/v8/custom/V8BlobCustomHelpers.h
similarity index 66%
copy from Source/bindings/v8/ScriptPromise.cpp
copy to Source/bindings/v8/custom/V8BlobCustomHelpers.h
index 4b532453a4c296e0b7885adfd6984454f4845e9d..2a0951abbf61412e4c6fc42edae490f88fede04d 100644
--- a/Source/bindings/v8/ScriptPromise.cpp
+++ b/Source/bindings/v8/custom/V8BlobCustomHelpers.h
@@ -28,32 +28,25 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include "config.h"
-#include "bindings/v8/ScriptPromise.h"
-
 #include "bindings/v8/V8Binding.h"
-#include "bindings/v8/V8DOMWrapper.h"
-#include "bindings/v8/custom/V8PromiseCustom.h"
-
-#include <v8.h>
 
 namespace WebCore {
 
-ScriptPromise ScriptPromise::createPending(ExecutionContext* context)
-{
-    ASSERT(v8::Context::InContext());
-    ASSERT(context);
-    v8::Isolate* isolate = toIsolate(context);
-    v8::Handle<v8::Object> promise = V8PromiseCustom::createPromise(toV8Context(context, DOMWrapperWorld::current())->Global(), isolate);
-    return ScriptPromise(promise, isolate);
-}
-
-ScriptPromise ScriptPromise::createPending()
-{
-    ASSERT(v8::Context::InContext());
-    v8::Isolate* isolate = v8::Isolate::GetCurrent();
-    v8::Handle<v8::Object> promise = V8PromiseCustom::createPromise(v8::Object::New(), isolate);
-    return ScriptPromise(promise, isolate);
-}
+class BlobBuilder;
+
+// Shared code between the custom constructor bindings for Blob and File.
+namespace V8BlobCustomHelpers {
+
+// Extracts the "type" and "endings" properties out of the BlobPropertyBag passed to a Blob constructor.
+// http://www.w3.org/TR/FileAPI/#constructorParams
+// Returns true if everything went well, false if a JS exception was thrown.
+bool processBlobPropertyBag(v8::Local<v8::Value> propertyBag, v8::Isolate*, String& contentType, String& endings);
+
+// Appends the blobParts passed to a Blob constructor into a BlobBuilder.
+// http://www.w3.org/TR/FileAPI/#constructorParams
+// Returns true if everything went well, false if a JS exception was thrown.
+bool processBlobParts(v8::Local<v8::Value> blobParts, v8::Isolate*, const String& endings, BlobBuilder&);
+
+} // namespace V8BlobCustomHelpers
 
 } // namespace WebCore