Add SHARED_DELETE flag to FileStream.

net/base/file_stream_unittest.cc

Index: net/base/file_stream_unittest.cc
diff --git a/net/base/file_stream_unittest.cc b/net/base/file_stream_unittest.cc
index e9307cd5fd091a38d9a5e0aa523cfd880b968791..731de7735759fcc0b4362092afe020a1d3e5ff71 100644
--- a/net/base/file_stream_unittest.cc
+++ b/net/base/file_stream_unittest.cc
@@ -44,7 +44,7 @@ class FileStreamTest : public PlatformTest {
     file_util::WriteFile(temp_file_path_, kTestData, kTestDataSize);
   }
   virtual void TearDown() {
-    file_util::Delete(temp_file_path_, false);
+    EXPECT_TRUE(file_util::Delete(temp_file_path_, false));
 
     PlatformTest::TearDown();
   }