Fixed

- 'example' deps.
- exposing 'internal' include files in external headers.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=232572457

example/BUILD

@@ -38,5 +38,6 @@ cc_binary(
     deps = [
         "//media_cas_proxy_sdk/external/common/wvpl:wvpl_cas_proxy_environment",
         "//media_cas_proxy_sdk/external/common/wvpl:wvpl_cas_proxy_session",
+        "//sdk/external/common/wvpl:wvpl_sdk_environment",
     ],
 )

media_cas_proxy_sdk/external/common/wvpl/wvpl_cas_proxy_session.cc

@@ -10,6 +10,7 @@
 #include <string>
 #include "google/protobuf/util/json_util.h"
 #include "absl/strings/escaping.h"
+#include "absl/synchronization/mutex.h"
 #include "common/error_space.h"
 #include "common/status.h"
 #include "sdk/external/common/wvpl/wvpl_types.h"
@@ -105,7 +106,7 @@ WvPLStatus WvPLCASProxySession::BuildCasDrmLicenseRequest(
   cas_drm_license_request->set_payload(license_request_from_cdm_);
   cas_drm_license_request->set_provider_id(provider_);
   cas_drm_license_request->set_content_id(pssh_data_.content_id());
-  absl::ReaderMutexLock lock(&cas_keys_mutex_);
+  absl::ReaderMutexLock lock(cas_keys_mutex_.get());
   for (const auto& it : cas_keys_) {
     if (it.even_key_bytes().empty()) {
       return WvPLStatus(error_space, widevine::MISSING_EVEN_KEY,
@@ -146,7 +147,7 @@ WvPLStatus WvPLCASProxySession::BuildCasDrmLicenseRequest(
 }
 
 WvPLStatus WvPLCASProxySession::AddCasKey(const WvPLCasKey& key) {
-  absl::WriterMutexLock lock(&cas_keys_mutex_);
+  absl::WriterMutexLock lock(cas_keys_mutex_.get());
   cas_keys_.push_back(key);
   return OkStatus();
 }
@@ -154,9 +155,11 @@ WvPLStatus WvPLCASProxySession::AddCasKey(const WvPLCasKey& key) {
 WvPLCASProxySession::WvPLCASProxySession(
     const widevine::DrmRootCertificate* drm_root_certificate,
     const std::string& cas_license_request_from_cdm)
-    : WvPLSDKSession(drm_root_certificate) {
+    : WvPLSDKSession(drm_root_certificate), cas_keys_mutex_(new absl::Mutex()) {
   license_request_from_cdm_ = cas_license_request_from_cdm;
 }
 
+WvPLCASProxySession::~WvPLCASProxySession() = default;
+
 }  // namespace wv_pl_sdk
 }  // namespace widevine_server

media_cas_proxy_sdk/external/common/wvpl/wvpl_cas_proxy_session.h

@@ -9,11 +9,18 @@
 #ifndef MEDIA_CAS_PROXY_SDK_EXTERNAL_COMMON_WVPL_WVPL_CAS_PROXY_SESSION_H_
 #define MEDIA_CAS_PROXY_SDK_EXTERNAL_COMMON_WVPL_WVPL_CAS_PROXY_SESSION_H_
 
+#include <memory>
 #include <string>
 #include <vector>
-#include "absl/synchronization/mutex.h"
 #include "sdk/external/common/wvpl/wvpl_sdk_session.h"
-#include "protos/public/media_cas_license.pb.h"
+
+namespace absl {
+class Mutex;
+}  // namespace absl
+
+namespace widevine {
+class CasDrmLicenseRequest;
+}  // namespace widevine
 
 namespace widevine_server {
 namespace wv_pl_sdk {
@@ -48,7 +55,7 @@ constexpr uint32_t kRelease = 2;
  */
 class WvPLCASProxySession : public WvPLSDKSession {
  public:
-  ~WvPLCASProxySession() override {}
+  ~WvPLCASProxySession() override;
 
   /**
    * Returns a std::string containing the version in the form -
@@ -101,10 +108,10 @@ class WvPLCASProxySession : public WvPLSDKSession {
   std::string provider_;
 
   // holds all the WvPLCasKey objects.  Used when generating a CAS License.
-  std::vector<WvPLCasKey> cas_keys_ GUARDED_BY(cas_keys_mutex_);
+  std::vector<WvPLCasKey> cas_keys_;
 
-  // Mutex to protect the keys owned by this session.
-  mutable absl::Mutex cas_keys_mutex_;
+  // Mutex to protect the keys, |cas_keys_|, owned by this session.
+  mutable std::unique_ptr<absl::Mutex> cas_keys_mutex_;
 };
 
 }  // namespace wv_pl_sdk