Media Keys should not count towards the max of four shortcuts per extension.

chrome/test/data/extensions/manifest_tests/command_should_not_count_media_keys.json

Index: chrome/test/data/extensions/manifest_tests/command_should_not_count_media_keys.json
diff --git a/chrome/test/data/extensions/manifest_tests/command_should_not_count_media_keys.json b/chrome/test/data/extensions/manifest_tests/command_should_not_count_media_keys.json
new file mode 100644
index 0000000000000000000000000000000000000000..01cbfaa95c407080a46fa79a26a93d87285dcbdd
--- /dev/null
+++ b/chrome/test/data/extensions/manifest_tests/command_should_not_count_media_keys.json
@@ -0,0 +1,31 @@
+{
+  "name": "Command test - mediaKeys should not counts towards the max of four shortcuts per extension",
+  "manifest_version": 2,
+  "version": "1",
+  "commands": {
+    "MediaNextTrack": {
+      "suggested_key": "MediaNextTrack",
+      "description": "MediaNextTrack"
+    },
+    "MediaPlayPause": {
+      "suggested_key": "MediaPlayPause",
+      "description": "MediaPlayPause"
+    },
+    "MediaPrevTrack": {
+      "suggested_key": "MediaPrevTrack",
+      "description": "MediaPrevTrack"
+    },
+    "MediaStop": {
+      "suggested_key": "MediaStop",
+      "description": "MediaStop"
+    },
+    "feature1": {
+      "suggested_key": "Ctrl+A",
+      "description": "feature1"
+    },
+    "feature2": {
+      "suggested_key": "Ctrl+B",
+      "description": "feature2"
+    }
+  }
+}