Revert of Remove the old AndroidVideoCapturer stack code.

webrtc/api/api.gyp

Index: webrtc/api/api.gyp
diff --git a/webrtc/api/api.gyp b/webrtc/api/api.gyp
index c781ec19c73fc0d441810e8e66b1f73b4266bb95..f9f846b544caf8b9cdb31928b6fb1a965d6946bd 100644
--- a/webrtc/api/api.gyp
+++ b/webrtc/api/api.gyp
@@ -43,6 +43,8 @@
             'android/jni/androidmetrics_jni.cc',
             'android/jni/androidnetworkmonitor_jni.cc',
             'android/jni/androidnetworkmonitor_jni.h',
+            'android/jni/androidvideocapturer_jni.cc',
+            'android/jni/androidvideocapturer_jni.h',
             'android/jni/androidvideotracksource_jni.cc',
             'android/jni/classreferenceholder.cc',
             'android/jni/classreferenceholder.h',
@@ -53,6 +55,8 @@
             'android/jni/peerconnection_jni.cc',
             'android/jni/surfacetexturehelper_jni.cc',
             'android/jni/surfacetexturehelper_jni.h',
+            'androidvideocapturer.cc',
+            'androidvideocapturer.h',
             'androidvideotracksource.cc',
             'androidvideotracksource.h',
           ],