Add liboemcrypto.so as required by WV APEX

[ Merge of go/wvgerrit/164757 ]

Modify Widevine apex configuration to add add liboemcrypto.so as
required by WV APEX.

Bug: 243699259
Test: atp v2/widevine-eng/drm_compliance
Change-Id: I136dde5d77aed4fb14737e4692153c8f3b2c701b

libwvdrmengine/apex/Android.bp

@@ -65,7 +65,6 @@ apex {
     manifest: "apex_manifest.json",
     prebuilts: [
         "com.google.android.widevine.rc",
-        "widevine-linker-config",
         "com.google.android.widevine.xml",  // etc/vintf
     ],
     defaults: [
@@ -83,12 +82,6 @@ apex {
     ],
 }
 
-linker_config {
-    name: "widevine-linker-config",
-    src: "linker.config.json",
-    installable: false,
-}
-
 apex_key {
     name: "com.google.android.widevine.key",
     public_key: "com.google.android.widevine.avbpubkey",

libwvdrmengine/apex/apex_manifest.json

@@ -1,4 +1,7 @@
 {
     "name": "com.google.android.widevine",
-    "version": 1
+    "version": 1,
+    "requireNativeLibs": [
+        "liboemcrypto.so"
+    ]
 }

libwvdrmengine/apex/device/Android.bp

@@ -0,0 +1,5 @@
+linker_config {
+    name: "widevine_linker_config",
+    src: "linker.config.json",
+    vendor: true,
+}

libwvdrmengine/apex/device/device.mk

@@ -0,0 +1,10 @@
+PRODUCT_PACKAGES += \
+	com.google.android.widevine \
+
+# Check if we can use dev keys
+ifneq ($(wildcard vendor/google/dev-keystore),)
+$(call soong_config_set,widevine,use_devkey,true)
+endif
+
+PRODUCT_PACKAGES += \
+	widevine_linker_config

libwvdrmengine/apex/device/linker.config.json

@@ -0,0 +1,5 @@
+{
+    "provideLibs": [
+        "liboemcrypto.so"
+    ]
+}

libwvdrmengine/apex/linker.config.json

@@ -1,3 +0,0 @@
-{
-  "permittedPaths": ["/vendor/${LIB}"]
-}

libwvdrmengine/cdm/core/src/oemcrypto_adapter_dynamic.cpp

@@ -849,16 +849,15 @@ class Adapter {
           wvcdm::metrics::OEMCrypto_INITIALIZED_USING_L3_NO_L1_LIBRARY_PATH);
       return result;
     }
-    if (level1_library_ == nullptr) {
+    if (!level1_library_) {
       for (auto& name : library_names) {
         level1_library_ = dlopen((name.c_str()), RTLD_NOW);
-        if (level1_library_) {
-          LOGV("Using oemcrypto path %s", name.c_str());
-          break;
+        if (!level1_library_) {
+          LOGW("Could not load oemcrypto from path %s.  %s", name.c_str(), dlerror());
         }
       }
-      if (level1_library_ == nullptr) {
-        LOGW("Could not load oemcrypto. Falling back to L3.  %s", dlerror());
+      if (!level1_library_) {
+        LOGW("Could not load oemcrypto. Falling back to L3.");
         metrics.OemCryptoDynamicAdapterMetrics::SetInitializationMode(
             wvcdm::metrics::OEMCrypto_INITIALIZED_USING_L3_L1_OPEN_FAILED);
         return result;

libwvdrmengine/cdm/src/properties_android.cpp

@@ -180,18 +180,9 @@ bool Properties::GetOEMCryptoPaths(std::vector<std::string>* library_names) {
     LOGW("Properties::GetOEMCryptoPath: Invalid parameter");
     return false;
   }
-  std::vector<std::string> library_paths = {"/vendor/", "/system/", "/odm/"};
-  std::string sub_dir;
-#if __LP64__
-  sub_dir = "lib64/";
-#else
-  sub_dir = "lib/";
-#endif
 
-  const std::string library_name = "liboemcrypto.so";
-  for (auto& path : library_paths) {
-    library_names->push_back(path + sub_dir + library_name);
-  }
+  library_names->push_back("liboemcrypto.so");
+
   return true;
 }