Introduce a Doodle Fetcher for NTP

chrome/browser/search/instant_service.cc

Index: chrome/browser/search/instant_service.cc
diff --git a/chrome/browser/search/instant_service.cc b/chrome/browser/search/instant_service.cc
index 4a1c3b142c8ca4076e58b0b8ee88481487c72826..666a2bf277c1e37d5afaef61207072f274c9583f 100644
--- a/chrome/browser/search/instant_service.cc
+++ b/chrome/browser/search/instant_service.cc
@@ -5,6 +5,8 @@
 #include "chrome/browser/search/instant_service.h"
 
 #include <stddef.h>
+#include <string>
+#include <utility>
 
 #include "base/bind.h"
 #include "base/feature_list.h"
@@ -33,6 +35,7 @@
 #include "chrome/browser/ui/webui/theme_source.h"
 #include "chrome/common/render_messages.h"
 #include "chrome/grit/theme_resources.h"
+#include "components/doodle/doodle_fetcher.h"
 #include "components/favicon/core/fallback_icon_service.h"
 #include "components/favicon/core/large_icon_service.h"
 #include "components/history/core/browser/top_sites.h"
@@ -57,6 +60,10 @@
 #include "chrome/browser/themes/theme_service_factory.h"
 #endif
 
+using doodle::DoodleState;
+using doodle::DoodleFetcher;
+using doodle::DoodleConfig;
+
 namespace {
 
 const base::Feature kNtpTilesFeature{"NTPTilesInInstantService",
@@ -148,6 +155,28 @@ InstantService::InstantService(Profile* profile)
   content::URLDataSource::Add(
       profile_, new LargeIconSource(fallback_icon_service, large_icon_service));
   content::URLDataSource::Add(profile_, new MostVisitedIframeSource());
+
+  doodle_fetcher_ = base::MakeUnique<DoodleFetcher>(
+      profile_->GetRequestContext(),
+      GURL(UIThreadSearchTermsData(profile_).GoogleBaseURLValue()));
+  doodle_fetcher_->FetchDoodle(base::Bind([](const DoodleConfig& config) {
+    if (config.state != DoodleState::AVAILABLE) {
+      LOG(ERROR) << "DEBUG DoodleFetcher: Doodle wasn't fetched.";
+      return;
+    }
+    LOG(ERROR)
+        << "DEBUG DoodleFetcher: Fetching and parsing the JSON succeeded.";
+    LOG(ERROR) << "DEBUG DoodleFetcher: config.TTL(ms)="
+               << config.time_to_live_ms;
+    LOG(ERROR) << "DEBUG DoodleFetcher: config.doodle_type="
+               << config.doodle_type;
+    LOG(ERROR) << "DEBUG DoodleFetcher: config.search_url="
+               << config.search_url.spec();
+    LOG(ERROR) << "DEBUG DoodleFetcher: config.large_image.url="
+               << config.large_image.url.spec();
+    LOG(ERROR) << "DEBUG DoodleFetcher: config.large_image.width="
+               << config.large_image.width;
+  }));
 }
 
 InstantService::~InstantService() {