Using == instead of Equals for der::Input comparison.

net/der/input.cc

Index: net/der/input.cc
diff --git a/net/der/input.cc b/net/der/input.cc
index 871f9f4ec7dc29a52d645f9c2194c2795d559394..49955905fa2d1f3db570b8badb4362dab5763330 100644
--- a/net/der/input.cc
+++ b/net/der/input.cc
@@ -24,12 +24,6 @@ Input::Input(const base::StringPiece& in)
 
 Input::Input(const std::string* s) : Input(base::StringPiece(*s)) {}
 
-bool Input::Equals(const Input& other) const {
-  if (len_ != other.len_)
-    return false;
-  return memcmp(data_, other.data_, len_) == 0;
-}
-
 std::string Input::AsString() const {
   return std::string(reinterpret_cast<const char*>(data_), len_);
 }
@@ -38,6 +32,16 @@ base::StringPiece Input::AsStringPiece() const {
   return base::StringPiece(reinterpret_cast<const char*>(data_), len_);
 }
 
+bool operator==(const Input& lhs, const Input& rhs) {
+  if (lhs.Length() != rhs.Length())
+    return false;
+  return memcmp(lhs.UnsafeData(), rhs.UnsafeData(), lhs.Length()) == 0;
+}
+
+bool operator!=(const Input& lhs, const Input& rhs) {
+  return !(lhs == rhs);
+}
+
 bool operator<(const Input& lhs, const Input& rhs) {
   return std::lexicographical_compare(
       lhs.UnsafeData(), lhs.UnsafeData() + lhs.Length(), rhs.UnsafeData(),