NewTabPage: Remove impression/click ping plumbing for local NTP

components/suggestions/suggestions_service.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/suggestions/suggestions_service.h"
 
 #include <memory>
 #include <utility>
 
 #include "base/feature_list.h"
@@ skipping 114 matching lines @@
 #else
 const char kDeviceType[] = "1";
 #endif
 
 // Format string for OAuth2 authentication headers.
 const char kAuthorizationHeaderFormat[] = "Authorization: Bearer %s";
 
 const char kFaviconURL[] =
     "https://s2.googleusercontent.com/s2/favicons?domain_url=%s&alt=s&sz=32";
 
-const char kPingURL[] =
-    "https://www.google.com/chromesuggestions/click?q=%lld&cd=%d";
-
 // The default expiry timeout is 168 hours.
 const int64_t kDefaultExpiryUsec = 168 * base::Time::kMicrosecondsPerHour;
 
 }  // namespace
 
 // Helper class for fetching OAuth2 access tokens.
 // To get a token, call |GetAccessToken|. Does not support multiple concurrent
 // token requests, i.e. check |HasPendingRequest| first.
 class SuggestionsService::AccessTokenFetcher
     : public OAuth2TokenService::Consumer {
@@ skipping 353 matching lines @@
   UpdateBlacklistDelay(true);
   ScheduleBlacklistUpload();
 }
 
 void SuggestionsService::PopulateExtraData(SuggestionsProfile* suggestions) {
   for (int i = 0; i < suggestions->suggestions_size(); ++i) {
     suggestions::ChromeSuggestion* s = suggestions->mutable_suggestions(i);
     if (!s->has_favicon_url() || s->favicon_url().empty()) {
       s->set_favicon_url(base::StringPrintf(kFaviconURL, s->url().c_str()));
     }
-    if (!s->has_impression_url() || s->impression_url().empty()) {
-      s->set_impression_url(
-          base::StringPrintf(
-              kPingURL, static_cast<long long>(suggestions->timestamp()), -1));
-    }
-
-    if (!s->has_click_url() || s->click_url().empty()) {
-      s->set_click_url(base::StringPrintf(
-          kPingURL, static_cast<long long>(suggestions->timestamp()), i));
-    }
   }
 }
 
 void SuggestionsService::Shutdown() {
   // Cancel pending request.
   pending_request_.reset(nullptr);
 }
 
 void SuggestionsService::ScheduleBlacklistUpload() {
   DCHECK(thread_checker_.CalledOnValidThread());
@@ skipping 31 matching lines @@
     scheduling_delay_ = TimeDelta::FromSeconds(kDefaultSchedulingDelaySec);
   } else {
     TimeDelta candidate_delay =
         scheduling_delay_ * kSchedulingBackoffMultiplier;
     if (candidate_delay < TimeDelta::FromSeconds(kSchedulingMaxDelaySec))
       scheduling_delay_ = candidate_delay;
   }
 }
 
 }  // namespace suggestions