Add a config resource to support platform specific keysystems in WebView.

Bug: 11759895
Change-Id: I19cc044817706d5ec2f5a236218249c0e30f98d4

core/res/res/values/config.xml

@@ -1597,5 +1597,12 @@
         <item>"1,sim,0,modem"</item>
     </string-array>
 
+    <!-- This string array can be overriden to add an additional DRM support for WebView EME. -->
+    <!-- Array of "[keySystemName],[UuidOfMediaDrm]" -->
+    <string-array name="config_keySystemUuidMapping" translatable="false">
+        <!-- Example:
+        <item>"x-com.microsoft.playready,9A04F079-9840-4286-AB92-E65BE0885F95"</item>
+        -->
+    </string-array>
 
 </resources>

core/res/res/values/symbols.xml

@@ -1002,6 +1002,7 @@
   <java-symbol type="array" name="config_callBarringMMI" />
   <java-symbol type="array" name="config_globalActionsList" />
   <java-symbol type="array" name="config_telephonyHardware" />
+  <java-symbol type="array" name="config_keySystemUuidMapping" />
 
   <java-symbol type="drawable" name="default_wallpaper" />
   <java-symbol type="drawable" name="indicator_input_error" />