Implement File constructor.

Source/bindings/v8/custom/V8BlobCustom.cpp

Index: Source/bindings/v8/custom/V8BlobCustom.cpp
diff --git a/Source/bindings/v8/custom/V8BlobCustom.cpp b/Source/bindings/v8/custom/V8BlobCustom.cpp
index d514a4eff6a71eb5d36f0cdd090baecd2215bb7e..41ff90d7d7fd1a43dae9238de2665f6cdf50b61c 100644
--- a/Source/bindings/v8/custom/V8BlobCustom.cpp
+++ b/Source/bindings/v8/custom/V8BlobCustom.cpp
@@ -49,8 +49,8 @@ void V8Blob::constructorCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
         return;
     }
 
-    v8::Local<v8::Value> firstArg = info[0];
-    if (!firstArg->IsArray()) {
+    // FIXME: handle WebIDL sequences, see http://crbug.com/314755
+    if (!info[0]->IsArray()) {
         throwTypeError("First argument of the constructor is not of type Array", info.GetIsolate());
         return;
     }
@@ -87,7 +87,7 @@ void V8Blob::constructorCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
 
     BlobBuilder blobBuilder;
 
-    V8TRYCATCH_VOID(v8::Local<v8::Array>, blobParts, v8::Local<v8::Array>::Cast(firstArg));
+    V8TRYCATCH_VOID(v8::Local<v8::Array>, blobParts, v8::Local<v8::Array>::Cast(info[0]));
     uint32_t length = blobParts->Length();
 
     for (uint32_t i = 0; i < length; ++i) {
@@ -111,7 +111,7 @@ void V8Blob::constructorCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
         }
     }
 
-    RefPtr<Blob> blob = blobBuilder.getBlob(type);
+    RefPtr<Blob> blob = blobBuilder.createBlob(type);
     info.GetReturnValue().Set(toV8(blob.get(), info.Holder(), info.GetIsolate()));
 }