Create FakeProviders for NativeAppMetadata and NativeAppManager

ios/public/provider/chrome/browser/BUILD.gn

Index: ios/public/provider/chrome/browser/BUILD.gn
diff --git a/ios/public/provider/chrome/browser/BUILD.gn b/ios/public/provider/chrome/browser/BUILD.gn
index a0b4224f79e40a08c779e7673f9650b49555258c..1311faa682aa22b647fa562d8a2d9bb01f632740 100644
--- a/ios/public/provider/chrome/browser/BUILD.gn
+++ b/ios/public/provider/chrome/browser/BUILD.gn
@@ -16,9 +16,6 @@ source_set("browser") {
     "images/branded_image_provider.h",
     "images/branded_image_provider.mm",
     "images/whats_new_icon.h",
-    "native_app_launcher/native_app_metadata.h",
-    "native_app_launcher/native_app_types.h",
-    "native_app_launcher/native_app_whitelist_manager.h",
     "omaha/omaha_service_provider.h",
     "omaha/omaha_service_provider.mm",
     "sessions/live_tab_context_provider.h",
@@ -60,6 +57,7 @@ source_set("browser") {
 
   public_deps = [
     ":provider_flags",
+    "//ios/public/provider/chrome/browser/native_app_launcher",

[sczs1, 2016/11/26 04:10:19]

This will be moved to deps after we update downstream build.gn paths to 
ios/public/provider/chrome/browser/native_app_launcher instead of
ios/public/provider/chrome/browser

[sdefresne, 2016/11/28 09:28:12]

I'm already splitting that target with
https://codereview.chromium.org/2527383002.

[sdefresne, 2016/11/28 09:29:47]

By that, I meant that you should leave those three files in the current target,
I'm taking care of moving them. Just define the "test_support" target in
ios/public/provider/chrome/browser/native_app_launcher/BUILD.gn.

[sczs1, 2016/11/28 19:16:30]

Acknowledged.

[sczs1, 2016/11/28 19:16:30]

Sounds good! Will revert these changes. 

   ]
 
   deps = [