Add support to previews/ for Server LoFi and LitePages

chrome/browser/android/offline_pages/offline_page_request_job_unittest.cc

Index: chrome/browser/android/offline_pages/offline_page_request_job_unittest.cc
diff --git a/chrome/browser/android/offline_pages/offline_page_request_job_unittest.cc b/chrome/browser/android/offline_pages/offline_page_request_job_unittest.cc
index 14f6b882c40b9e7805c6d8d3d298c07268cf4124..cbbf7e0d8a4fcaa42ad17f116f9cb8d3deb1a328 100644
--- a/chrome/browser/android/offline_pages/offline_page_request_job_unittest.cc
+++ b/chrome/browser/android/offline_pages/offline_page_request_job_unittest.cc
@@ -193,6 +193,14 @@ class TestPreviewsDecider : public previews::PreviewsDecider {
     return should_allow_preview_;
   }
 
+  bool ShouldAllowPreview(

[tbansal1, 2017/05/05 20:34:38]

I can dig up but IIRC, the style guide prohibits (discourages?) multiple methods
with same name even if they have different arguments.

[RyanSturm, 2017/05/05 20:51:34]

Done.

+      const net::URLRequest& request,
+      previews::PreviewsType type,
+      net::EffectiveConnectionType effective_connection_type_threshold)
+      const override {
+    return should_allow_preview_;
+  }
+
   void set_should_allow_preview(bool should_allow_preview) {
     should_allow_preview_ = should_allow_preview;
   }