[ios] Adds OmahaServiceProvider.

ios/public/provider/chrome/browser/test_chrome_browser_provider.mm

Index: ios/public/provider/chrome/browser/test_chrome_browser_provider.mm
diff --git a/ios/public/provider/chrome/browser/test_chrome_browser_provider.mm b/ios/public/provider/chrome/browser/test_chrome_browser_provider.mm
index ed517122f07201bd77cc8ad244cb1bb75461baae..faa284ea079244a23a91370e9ff2e74f4162adf0 100644
--- a/ios/public/provider/chrome/browser/test_chrome_browser_provider.mm
+++ b/ios/public/provider/chrome/browser/test_chrome_browser_provider.mm
@@ -10,6 +10,7 @@
 #include "base/mac/scoped_nsobject.h"
 #include "base/memory/ptr_util.h"
 #include "ios/public/provider/chrome/browser/distribution/test_app_distribution_provider.h"
+#include "ios/public/provider/chrome/browser/omaha/omaha_service_provider.h"
 #include "ios/public/provider/chrome/browser/signin/fake_chrome_identity_service.h"
 #import "ios/public/provider/chrome/browser/test_updatable_resource_provider.h"
 #import "ios/public/provider/chrome/browser/voice/test_voice_search_provider.h"
@@ -31,6 +32,7 @@ namespace ios {
 TestChromeBrowserProvider::TestChromeBrowserProvider()
     : app_distribution_provider_(
           base::MakeUnique<TestAppDistributionProvider>()),
+      omaha_service_provider_(base::MakeUnique<OmahaServiceProvider>()),
       updatable_resource_provider_(
           base::MakeUnique<TestUpdatableResourceProvider>()),
       voice_search_provider_(base::MakeUnique<TestVoiceSearchProvider>()) {}
@@ -79,4 +81,9 @@ AppDistributionProvider* TestChromeBrowserProvider::GetAppDistributionProvider()
   return app_distribution_provider_.get();
 }
 
+OmahaServiceProvider* TestChromeBrowserProvider::GetOmahaServiceProvider()
+    const {
+  return omaha_service_provider_.get();
+}
+
 }  // namespace ios