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/include/crypto_session.h

@@ -26,7 +26,7 @@ namespace wvcdm {
 class CryptoKey;
 class UsageTableHeader;
 
-typedef std::map<std::string, CryptoKey*> CryptoKeyMap;
+using CryptoKeyMap = std::map<std::string, CryptoKey*>;
 
 // Crypto session utility functions used by KeySession implementations.
 void GenerateMacContext(const std::string& input_context,
@@ -43,7 +43,7 @@ class CryptoSessionFactory;
 
 class CryptoSession {
  public:
-  typedef OEMCrypto_HDCP_Capability HdcpCapability;
+  using HdcpCapability = OEMCrypto_HDCP_Capability;
   typedef enum {
     kUsageDurationsInvalid = 0,
     kUsageDurationPlaybackNotBegun = 1,