Update CDM interface and add clear key CDM.

webkit/media/webkit_media.gypi

Index: webkit/media/webkit_media.gypi
diff --git a/webkit/media/webkit_media.gypi b/webkit/media/webkit_media.gypi
index 994a3542c51d635a746445731c14a249c39401f6..a3064575bde5d680cd85e55f55b3c7c95fa0ac54 100644
--- a/webkit/media/webkit_media.gypi
+++ b/webkit/media/webkit_media.gypi
@@ -78,5 +78,16 @@
         }],
       ],
     },
+    {
+      'target_name': 'clear_key_cdm',

[ddorwin, 2012/08/15 20:15:00]

should this use underscores or be concatenated? The chrome/ directory is
inconsistent. On Linux, will this start with "lib". I think it should, and we
should be consistent with other lib* .so's.

[xhwang, 2012/08/16 02:32:40]

On line 8, the target name for webkit_media is 'webkit_media', so I assume
underscore is okay. The output file name on linux is libclear_key_cdm.so, which
is at least compatible with other lib* names in src/out/Debug/lib/. I checked
/usr/lib64 and found there are many styles of names so I am not sure if there's
a standard linux naming style for libs.

[ddorwin, 2012/08/16 05:00:35]

webkit_media is a static library that we happen to make dynamic in shared object
builds, which we don't ship. IOW, I don't think that's a good example. Also,
this name is used for all OSes, so Linux naming is not necessarily a good guide.
I would follow other Pepper .so's, which are libfoobarthing.so.

[xhwang, 2012/08/16 17:19:00]

Done.

+      'type': 'shared_library',
+      'dependencies': [
+        '<(DEPTH)/base/base.gyp:base'

[ddorwin, 2012/08/15 20:15:00]

+ webkit_media and media?

[xhwang, 2012/08/16 02:32:40]

Added media, this shouldn't depend on webkit_media.

+      ],
+      'sources': [
+        'crypto/clear_key_cdm.cc',
+        'crypto/clear_key_cdm.h',
+      ],
+    }
   ],
 }