Change webkit/{fileapi,quota} code to use TaskRunner.

webkit/fileapi/file_writer_delegate_unittest.cc

Index: webkit/fileapi/file_writer_delegate_unittest.cc
diff --git a/webkit/fileapi/file_writer_delegate_unittest.cc b/webkit/fileapi/file_writer_delegate_unittest.cc
index 24a85cb4f1b55632b444941585e55b179965d794..31c95dbda205f7e4d339589c9ee80e3bb135e2a1 100644
--- a/webkit/fileapi/file_writer_delegate_unittest.cc
+++ b/webkit/fileapi/file_writer_delegate_unittest.cc
@@ -115,7 +115,7 @@ class FileWriterDelegateTest : public PlatformTest {
     file_writer_delegate_.reset(new FileWriterDelegate(
         CreateNewOperation(result_.get(), allowed_growth),
         test_helper_.CreatePath(file_path_),
-        offset, base::MessageLoopProxy::current()));
+        offset));
     request_.reset(new net::URLRequest(blob_url, file_writer_delegate_.get()));
   }
 
@@ -326,8 +326,7 @@ TEST_F(FileWriterDelegateTest, WriteSuccessWithoutQuotaLimitConcurrent) {
   result2.reset(new Result());
   file_writer_delegate2.reset(new FileWriterDelegate(
       CreateNewOperation(result2.get(), QuotaFileUtil::kNoLimit),
-      test_helper_.CreatePath(file_path2),
-      0, base::MessageLoopProxy::current()));
+      test_helper_.CreatePath(file_path2), 0));
   request2.reset(new net::URLRequest(kBlobURL2, file_writer_delegate2.get()));
 
   ASSERT_EQ(0, test_helper_.GetCachedOriginUsage());