explicit operator bool for CFX_RetainPtr and CFX_CountRef

core/fxcrt/cfx_retain_ptr_unittest.cpp

Index: core/fxcrt/cfx_retain_ptr_unittest.cpp
diff --git a/core/fxcrt/cfx_retain_ptr_unittest.cpp b/core/fxcrt/cfx_retain_ptr_unittest.cpp
index 4e74e52768fa1e19237261b3c4193600bafe2441..9da0d5ccf8ccf6bbb6bf8ccbda4e8c207004562a 100644
--- a/core/fxcrt/cfx_retain_ptr_unittest.cpp
+++ b/core/fxcrt/cfx_retain_ptr_unittest.cpp
@@ -208,8 +208,8 @@ TEST(fxcrt, RetainPtrBool) {
   PseudoRetainable obj1;
   CFX_RetainPtr<PseudoRetainable> null_ptr;
   CFX_RetainPtr<PseudoRetainable> obj1_ptr(&obj1);
-  bool null_bool = null_ptr;
-  bool obj1_bool = obj1_ptr;
+  bool null_bool = !!null_ptr;
+  bool obj1_bool = !!obj1_ptr;
   EXPECT_FALSE(null_bool);
   EXPECT_TRUE(obj1_bool);
 }