media: Add External Clear Key content browser test on Android

content/browser/media/encrypted_media_browsertest.cc

Index: content/browser/media/encrypted_media_browsertest.cc
diff --git a/content/browser/media/encrypted_media_browsertest.cc b/content/browser/media/encrypted_media_browsertest.cc
index 53afea3c3d5368454884f5b8e6bc871daf6c86c1..56135cc6f1f1c6ae631a4deea73bc43143930e0c 100644
--- a/content/browser/media/encrypted_media_browsertest.cc
+++ b/content/browser/media/encrypted_media_browsertest.cc
@@ -10,6 +10,7 @@
 #include "content/public/common/content_switches.h"
 #include "content/public/test/browser_test_utils.h"
 #include "content/shell/browser/shell.h"
+
 #if defined(OS_ANDROID)
 #include "base/android/build_info.h"
 #include "media/base/media.h"
@@ -18,6 +19,10 @@
 // Available key systems.
 const char kClearKeyKeySystem[] = "org.w3.clearkey";
 
+#if defined(OS_ANDROID)
+const char kExternalClearKeyKeySystem[] = "org.chromium.externalclearkey";
+#endif
+
 // Supported media types.
 const char kWebMAudioOnly[] = "audio/webm; codecs=\"vorbis\"";
 const char kWebMVideoOnly[] = "video/webm; codecs=\"vp8\"";
@@ -204,4 +209,15 @@ IN_PROC_BROWSER_TEST_F(EncryptedMediaTest, UnknownKeySystemThrowsException) {
                         kEmeNotSupportedError);
 }
 
+#if defined(OS_ANDROID)
+// On Android, External Clear Key is supported in shell/ by using mojo CDM
+// with AesDecryptor running in the GPU process.
+// On other platforms, External Clear Key is supported in chrome/, so it is

[ddorwin, 2016/09/14 01:06:27]

This difference and all the ifdefs are unfortunate.

[xhwang, 2016/09/16 18:49:58]

Acknowledged.

+// tested in browser_tests.
+IN_PROC_BROWSER_TEST_F(EncryptedMediaTest, ExternalClearKeyPlayback) {
+  RunSimpleEncryptedMediaTest("bear-320x240-av_enc-av.webm", kWebMAudioVideo,
+                              kExternalClearKeyKeySystem, MSE);
+}
+#endif
+
 }  // namespace content