[Offline Pages] Adds Rappor metrics measuring what domains are saved & viewed.

chrome/browser/android/offline_pages/test_offline_page_model_builder.cc

Index: chrome/browser/android/offline_pages/test_offline_page_model_builder.cc
diff --git a/chrome/browser/android/offline_pages/test_offline_page_model_builder.cc b/chrome/browser/android/offline_pages/test_offline_page_model_builder.cc
index 6641b06ee9edadd1c3cf2991df33f483713f4aee..592071573f55f392d058cc4ec2151bbad336f81b 100644
--- a/chrome/browser/android/offline_pages/test_offline_page_model_builder.cc
+++ b/chrome/browser/android/offline_pages/test_offline_page_model_builder.cc
@@ -7,6 +7,7 @@
 #include <utility>
 
 #include "base/memory/ref_counted.h"
+#include "base/memory/weak_ptr.h"
 #include "base/single_thread_task_runner.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "chrome/common/chrome_constants.h"
@@ -14,6 +15,10 @@
 #include "components/offline_pages/offline_page_test_store.h"
 #include "content/public/browser/browser_context.h"
 
+namespace rappor {
+class RapporService;
+}
+
 namespace offline_pages {
 
 std::unique_ptr<KeyedService> BuildTestOfflinePageModel(
@@ -28,7 +33,8 @@ std::unique_ptr<KeyedService> BuildTestOfflinePageModel(
       context->GetPath().Append(chrome::kOfflinePageArchviesDirname);
 
   return std::unique_ptr<KeyedService>(new OfflinePageModel(
-      std::move(metadata_store), archives_dir, task_runner));
+      std::move(metadata_store), archives_dir,
+      base::WeakPtr<rappor::RapporService>(), task_runner));
 }
 
 }  // namespace offline_pages