Replace typedef with using statement in cdm/core/ files.

[ Merge of http://go/wvgerrit/80805 ]

This change was used only where `typedef` was used for type aliasing,
and not for defining a new type (such as enums, structs, or function
pointer types).

Clang-format was used on the changed files.

Test: WV unit tests
Bug: 134437705
Change-Id: I730b9709a5ac773b3036daa79024caab665b3daa

libwvdrmengine/cdm/core/src/license_key_status.cpp

@@ -11,11 +11,11 @@
 
 namespace {
 // License protocol aliases
-typedef ::video_widevine::License::KeyContainer KeyContainer;
-typedef KeyContainer::OutputProtection OutputProtection;
-typedef KeyContainer::VideoResolutionConstraint VideoResolutionConstraint;
-typedef ::google::protobuf::RepeatedPtrField<VideoResolutionConstraint>
-    ConstraintList;
+using KeyContainer = ::video_widevine::License::KeyContainer;
+using OutputProtection = KeyContainer::OutputProtection;
+using VideoResolutionConstraint = KeyContainer::VideoResolutionConstraint;
+using ConstraintList =
+    ::google::protobuf::RepeatedPtrField<VideoResolutionConstraint>;
 
 // Map the HDCP protection associated with a key in the license to
 // an equivalent OEMCrypto HDCP protection level
@@ -49,7 +49,7 @@ wvcdm::CryptoSession::HdcpCapability ProtobufHdcpToOemCryptoHdcp(
 // specified resolution, or null if none match
 VideoResolutionConstraint* GetConstraintForRes(
     uint32_t res, ConstraintList& constraints_from_key) {
-  typedef ConstraintList::pointer_iterator Iterator;
+  using Iterator = ConstraintList::pointer_iterator;
   for (Iterator i = constraints_from_key.pointer_begin();
        i != constraints_from_key.pointer_end(); ++i) {
     VideoResolutionConstraint* constraint = *i;

libwvdrmengine/cdm/core/src/oemcrypto_adapter_dynamic.cpp

@@ -590,7 +590,7 @@ struct LevelSession {
 // 3 function pointers.  The Adapter is a global singleton.
 class Adapter {
  public:
-  typedef std::map<OEMCrypto_SESSION, LevelSession>::iterator map_iterator;
+  using map_iterator = std::map<OEMCrypto_SESSION, LevelSession>::iterator;
 
   Adapter() : level1_valid_(false), level1_library_(NULL) {}