Add DebugInfo to DistilledPageProto.

components/dom_distiller/core/distiller_unittest.cc

Index: components/dom_distiller/core/distiller_unittest.cc
diff --git a/components/dom_distiller/core/distiller_unittest.cc b/components/dom_distiller/core/distiller_unittest.cc
index e6e7797b58de6fc7b72d9ff00d72ad5c8023d0d2..e57510997c2080216e233f19821c60c0abb2a207 100644
--- a/components/dom_distiller/core/distiller_unittest.cc
+++ b/components/dom_distiller/core/distiller_unittest.cc
@@ -45,6 +45,7 @@ const size_t kTotalImages = 2;
 const char* kImageURLs[kTotalImages] = {"http://a.com/img1.jpg",
                                         "http://a.com/img2.jpg"};
 const char* kImageData[kTotalImages] = {"abcde", "12345"};
+const char kDebugLog[] = "Debug Log";
 
 const string GetImageName(int page_num, int image_num) {
   return base::IntToString(page_num) + "_" + base::IntToString(image_num);
@@ -341,6 +342,20 @@ TEST_F(DistillerTest, DistillPage) {
   EXPECT_EQ(kURL, first_page.url());
 }
 
+TEST_F(DistillerTest, DistillPageWithDebugInfo) {
+  base::MessageLoopForUI loop;
+  DomDistillerResult dd_result;
+  dd_result.mutable_debug_info()->set_log(kDebugLog);
+  scoped_ptr<base::Value> result =
+      dom_distiller::proto::json::DomDistillerResult::WriteToValue(dd_result);
+  distiller_.reset(
+      new DistillerImpl(url_fetcher_factory_, DomDistillerOptions()));
+  DistillPage(kURL, CreateMockDistillerPage(result.get(), GURL(kURL)).Pass());
+  base::MessageLoop::current()->RunUntilIdle();
+  const DistilledPageProto& first_page = article_proto_->pages(0);
+  EXPECT_EQ(kDebugLog, first_page.debug_info().log());
+}
+
 TEST_F(DistillerTest, DistillPageWithImages) {
   base::MessageLoopForUI loop;
   vector<int> image_indices;