[BlobStorage] Added back security policy for files in blobs

content/browser/blob_storage/blob_dispatcher_host_unittest.cc

Index: content/browser/blob_storage/blob_dispatcher_host_unittest.cc
diff --git a/content/browser/blob_storage/blob_dispatcher_host_unittest.cc b/content/browser/blob_storage/blob_dispatcher_host_unittest.cc
index ccd53246c449c74f707c05c0ebed4184deb0c543..0293099488e8ab64f83b782bc48b90ff89da1c7e 100644
--- a/content/browser/blob_storage/blob_dispatcher_host_unittest.cc
+++ b/content/browser/blob_storage/blob_dispatcher_host_unittest.cc
@@ -59,11 +59,13 @@ void ConstructionCompletePopulator(bool* succeeded_pointer,
   *reason_pointer = reason;
 }
 
+// TODO(dmurph): Create file test that verifies security policy.
 class TestableBlobDispatcherHost : public BlobDispatcherHost {
  public:
   TestableBlobDispatcherHost(ChromeBlobStorageContext* blob_storage_context,
                              IPC::TestSink* sink)
-      : BlobDispatcherHost(blob_storage_context), sink_(sink) {
+      : BlobDispatcherHost(
+          0 /* process_id */, blob_storage_context), sink_(sink) {
     this->SetMemoryConstantsForTesting(kTestBlobStorageIPCThresholdBytes,
                                        kTestBlobStorageMaxSharedMemoryBytes,
                                        kTestBlobStorageMaxFileSizeBytes);
@@ -286,6 +288,32 @@ TEST_F(BlobDispatcherHostTest, Shortcut) {
   ExpectHandleEqualsData(handle.get(), elements);
 }
 
+
+TEST_F(BlobDispatcherHostTest, File) {
+  const std::string kId = "uuid1";
+  sink_.ClearMessages();
+  host_->OnRegisterBlobUUID(id, std::string(kContentType),
+                            std::string(kContentDisposition),
+                            std::set<std::string>());
+  EXPECT_FALSE(host_->shutdown_for_bad_message_);
+  DataElement element;
+  element.SetToFile()
+  std::vector<DataElement> elements = {element};
+  host_->OnStartBuildingBlob(id, elements);
+  EXPECT_FALSE(host_->shutdown_for_bad_message_);
+  ExpectDone(id);
+  sink_.ClearMessages();
+  EXPECT_TRUE(context_->registry().HasEntry(kId));
+  std::unique_ptr<BlobDataHandle> handle = context_->GetBlobDataFromUUID(kId);
+  EXPECT_TRUE(handle);
+
+  DataElement expected;
+  expected.SetToBytes(kData, kDataSize);
+  std::vector<DataElement> elements = {expected};
+  ExpectHandleEqualsData(handle.get(), elements);
+}
+
+
 TEST_F(BlobDispatcherHostTest, RegularTransfer) {
   const std::string kId = "uuid1";
   AsyncBlobTransfer(kId);