Revert of Improve the ScopedHandle verifier.

base/win/scoped_handle.h

Index: base/win/scoped_handle.h
diff --git a/base/win/scoped_handle.h b/base/win/scoped_handle.h
index e1e0f5d592ad2e557b32a821b7f0b029c10d63c3..00063afe3526f9df94d3ca6dbc0da5bb93ca5753 100644
--- a/base/win/scoped_handle.h
+++ b/base/win/scoped_handle.h
@@ -101,7 +101,9 @@
       Verifier::StopTracking(handle_, this, BASE_WIN_GET_CALLER,
                              tracked_objects::GetProgramCounter());
 
-      Traits::CloseHandle(handle_);
+      if (!Traits::CloseHandle(handle_))
+        CHECK(false);
+
       handle_ = Traits::NullHandle();
     }
   }
@@ -118,7 +120,9 @@
   typedef HANDLE Handle;
 
   // Closes the handle.
-  static bool BASE_EXPORT CloseHandle(HANDLE handle);
+  static bool CloseHandle(HANDLE handle) {
+    return ::CloseHandle(handle) != FALSE;
+  }
 
   // Returns true if the handle value is valid.
   static bool IsHandleValid(HANDLE handle) {
@@ -164,17 +168,6 @@
 
 typedef GenericScopedHandle<HandleTraits, VerifierTraits> ScopedHandle;
 
-// This function should be called by the embedder to enable the use of
-// VerifierTraits at runtime. It has no effect if DummyVerifierTraits is used
-// for ScopedHandle.
-void BASE_EXPORT EnableHandleVerifier();
-
-// This should be called whenever the OS is closing a handle, if extended
-// verification of improper handle closing is desired. If |handle| is being
-// tracked by the handle verifier and ScopedHandle is not the one closing it,
-// a CHECK is generated.
-void BASE_EXPORT OnHandleBeingClosed(HANDLE handle);
-
 }  // namespace win
 }  // namespace base