Add support for iOS WatchKit apps in GYP

test/ios/watch/WatchApp/Images.xcassets/AppIcon.appiconset/Contents.json

Index: test/ios/watch/WatchApp/Images.xcassets/AppIcon.appiconset/Contents.json
diff --git a/test/ios/watch/WatchApp/Images.xcassets/AppIcon.appiconset/Contents.json b/test/ios/watch/WatchApp/Images.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000000000000000000000000000000000000..562c5eff9792f1a950a6431030ea86214435f074
--- /dev/null
+++ b/test/ios/watch/WatchApp/Images.xcassets/AppIcon.appiconset/Contents.json
@@ -0,0 +1,62 @@
+{
+  "images" : [
+    {
+      "size" : "14.5x14.5",
+      "idiom" : "watch",
+      "scale" : "2x",
+      "role" : "notificationCenter",
+      "subtype" : "38mm"
+    },
+    {
+      "size" : "18x18",
+      "idiom" : "watch",
+      "scale" : "2x",
+      "role" : "notificationCenter",
+      "subtype" : "42mm"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "watch",
+      "role" : "companionSettings",
+      "scale" : "2x"
+    },
+    {
+      "size" : "29.3x29.3",
+      "idiom" : "watch",
+      "role" : "companionSettings",
+      "scale" : "3x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "watch",
+      "scale" : "2x",
+      "role" : "appLauncher",
+      "subtype" : "38mm"
+    },
+    {
+      "size" : "44x44",
+      "idiom" : "watch",
+      "scale" : "2x",
+      "role" : "appLauncher",
+      "subtype" : "42mm"
+    },
+    {
+      "size" : "86x86",
+      "idiom" : "watch",
+      "scale" : "2x",
+      "role" : "quickLook",
+      "subtype" : "38mm"
+    },
+    {
+      "size" : "98x98",
+      "idiom" : "watch",
+      "scale" : "2x",
+      "role" : "quickLook",
+      "subtype" : "42mm"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}