Add content_shell_test_apk and a several dependencies

media/media.gyp

Index: media/media.gyp
diff --git a/media/media.gyp b/media/media.gyp
index 197c153d7fd084d7fb4c399259b6f23ffffea600..86eab779f0ea730288086dbc003ad859a28bd369 100644
--- a/media/media.gyp
+++ b/media/media.gyp
@@ -1608,6 +1608,7 @@
     ['OS=="android"', {
       'targets': [
         {
+          # TODO(GN)
           'target_name': 'media_unittests_apk',
           'type': 'none',
           'dependencies': [
@@ -1620,6 +1621,7 @@
           'includes': ['../build/apk_test.gypi'],
         },
         {
+          # TODO(GN)
           'target_name': 'media_perftests_apk',
           'type': 'none',
           'dependencies': [
@@ -1632,6 +1634,7 @@
           'includes': ['../build/apk_test.gypi'],
         },
         {
+          # GN: //media/base/android:media_android_jni_headers
           'target_name': 'media_android_jni_headers',
           'type': 'none',
           'sources': [
@@ -1651,6 +1654,7 @@
           'includes': ['../build/jni_generator.gypi'],
         },
         {
+          # GN: //media/base/android:video_capture_android_jni_headers
           'target_name': 'video_capture_android_jni_headers',
           'type': 'none',
           'sources': [
@@ -1663,6 +1667,7 @@
           'includes': ['../build/jni_generator.gypi'],
         },
         {
+          # GN: //media/base/android:android
           'target_name': 'player_android',
           'type': 'static_library',
           'sources': [
@@ -1708,6 +1713,7 @@
           ],
         },
         {
+          # GN: //media/base/android:media_java
           'target_name': 'media_java',
           'type': 'none',
           'dependencies': [
@@ -1723,6 +1729,7 @@
           'includes': ['../build/java.gypi'],
         },
         {
+          # GN: //media/base/android:media_android_imageformat_list
           'target_name': 'media_android_imageformat_list',
           'type': 'none',
           'sources': [