EDK: Add tests for ..._RIGHTS_NONE in HandleTest.HasAllRights.

(Requested in https://codereview.chromium.org/1957713003/.)

TBR=azani@chromium.org

Review URL: https://codereview.chromium.org/1958903007 .

mojo/edk/system/handle_unittest.cc

diff --git a/mojo/edk/system/handle_unittest.cc b/mojo/edk/system/handle_unittest.cc
index 141b390..e1022f5 100644
--- a/mojo/edk/system/handle_unittest.cc
+++ b/mojo/edk/system/handle_unittest.cc
@@ -118,6 +118,7 @@
   {
     Handle h;
 
+    EXPECT_TRUE(h.has_all_rights(MOJO_HANDLE_RIGHT_NONE));
     EXPECT_FALSE(h.has_all_rights(MOJO_HANDLE_RIGHT_DUPLICATE));
     EXPECT_FALSE(h.has_all_rights(MOJO_HANDLE_RIGHT_TRANSFER));
     EXPECT_FALSE(h.has_all_rights(MOJO_HANDLE_RIGHT_READ));
@@ -128,6 +129,7 @@
     Handle h(MakeRefCounted<test::MockSimpleDispatcher>(),
              MOJO_HANDLE_RIGHT_DUPLICATE | MOJO_HANDLE_RIGHT_READ);
 
+    EXPECT_TRUE(h.has_all_rights(MOJO_HANDLE_RIGHT_NONE));
     EXPECT_TRUE(h.has_all_rights(MOJO_HANDLE_RIGHT_DUPLICATE));
     EXPECT_FALSE(h.has_all_rights(MOJO_HANDLE_RIGHT_TRANSFER));
     EXPECT_TRUE(h.has_all_rights(MOJO_HANDLE_RIGHT_READ));