Improve comments on deprecated macros

Deprecated macros should not suggest using them.

Bug: 1010217

Change-Id: I31eb11f3ac54d7fb92566ae5f4ea1cda9a01c714
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2591749Reviewed-by: danakj <danakj@chromium.org>
Commit-Queue: danakj <danakj@chromium.org>
Cr-Commit-Position: refs/heads/master@{#837161}

base/macros.h

@@ -14,21 +14,20 @@
 // Use explicit deletions instead.  See the section on copyability/movability in
 // //styleguide/c++/c++-dos-and-donts.md for more information.
 
-// Put this in the declarations for a class to be uncopyable.
+// DEPRECATED: See above. Makes a class uncopyable.
 #define DISALLOW_COPY(TypeName) \
   TypeName(const TypeName&) = delete
 
-// Put this in the declarations for a class to be unassignable.
+// DEPRECATED: See above. Makes a class unassignable.
 #define DISALLOW_ASSIGN(TypeName) TypeName& operator=(const TypeName&) = delete
 
-// Put this in the declarations for a class to be uncopyable and unassignable.
+// DEPRECATED: See above. Makes a class uncopyable and unassignable.
 #define DISALLOW_COPY_AND_ASSIGN(TypeName) \
   DISALLOW_COPY(TypeName);                 \
   DISALLOW_ASSIGN(TypeName)
 
-// A macro to disallow all the implicit constructors, namely the
+// DEPRECATED: See above. Disallow all implicit constructors, namely the
 // default constructor, copy constructor and operator= functions.
-// This is especially useful for classes containing only static methods.
 #define DISALLOW_IMPLICIT_CONSTRUCTORS(TypeName) \
   TypeName() = delete;                           \
   DISALLOW_COPY_AND_ASSIGN(TypeName)