Fix TemplateUrl::MatchesData comparison of search_terms_replacement_key (reland)

components/search_engines/template_url_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/search_engines/template_url_service.h"
 
 #include <algorithm>
 #include <utility>
 
 #include "base/auto_reset.h"
@@ skipping 674 matching lines @@
     // notified of the new (fallback-provided) value in
     // ClearUserSelectedDefaultSearchEngine() above. Since we are here, the
     // value was presumably originally a fallback value (which may have been
     // repaired).
     DefaultSearchManager::Source source;
     const TemplateURLData* new_dse =
         default_search_manager_.GetDefaultSearchEngine(&source);
     // ApplyDefaultSearchChange will notify observers once it is done.
     ApplyDefaultSearchChange(new_dse, source);
   } else {
+    // Set fallback engine as user selected, because repair is considered a user
+    // action and we are expected to sync new fallback engine to other devices.
+    const TemplateURLData* fallback_engine_data =
+        default_search_manager_.GetFallbackSearchEngine();
+    if (fallback_engine_data) {
+      TemplateURL* fallback_engine =
+          FindPrepopulatedTemplateURL(fallback_engine_data->prepopulate_id);
+      // The fallback engine is created from built-in/override data that should
+      // always have a prepopulate ID, so this engine should always exist after
+      // a repair."
+      DCHECK(fallback_engine);
+      // Write the fallback engine's GUID to prefs, which will cause
+      // OnSyncedDefaultSearchProviderGUIDChanged() to set it as the new
+      // user-selected engine.
+      prefs_->SetString(prefs::kSyncedDefaultSearchProviderGUID,
+                        fallback_engine->sync_guid());
+    }
     NotifyObservers();
   }
 }
 
 void TemplateURLService::AddObserver(TemplateURLServiceObserver* observer) {
   model_observers_.AddObserver(observer);
 }
 
 void TemplateURLService::RemoveObserver(TemplateURLServiceObserver* observer) {
   model_observers_.RemoveObserver(observer);
@@ skipping 679 matching lines @@
   if (prefs_) {
     pref_change_registrar_.Init(prefs_);
     pref_change_registrar_.Add(
         prefs::kSyncedDefaultSearchProviderGUID,
         base::Bind(
             &TemplateURLService::OnSyncedDefaultSearchProviderGUIDChanged,
             base::Unretained(this)));
   }
 
   DefaultSearchManager::Source source = DefaultSearchManager::FROM_USER;
-  TemplateURLData* dse =
+  const TemplateURLData* dse =
       default_search_manager_.GetDefaultSearchEngine(&source);
   ApplyDefaultSearchChange(dse, source);
 
   if (num_initializers > 0) {
     // This path is only hit by test code and is used to simulate a loaded
     // TemplateURLService.
     ChangeToLoadedState();
 
     // Add specific initializers, if any.
     KeywordWebDataService::BatchModeScoper scoper(web_data_service_.get());
@@ skipping 525 matching lines @@
   KeywordWebDataService::BatchModeScoper scoper(web_data_service_.get());
   if (default_search_provider_source_ == DefaultSearchManager::FROM_POLICY ||
       source == DefaultSearchManager::FROM_POLICY) {
     // We do this both to remove any no-longer-applicable policy-defined DSE as
     // well as to add the new one, if appropriate.
     UpdateProvidersCreatedByPolicy(
         &template_urls_,
         source == DefaultSearchManager::FROM_POLICY ? data : nullptr);
   }
 
+  // |default_search_provider_source_| must be set before calling
+  // UpdateNoNotify(), since that function needs to know the source of the
+  // update in question.
+  default_search_provider_source_ = source;
+
   if (!data) {
     default_search_provider_ = nullptr;
   } else if (source == DefaultSearchManager::FROM_EXTENSION) {
     default_search_provider_ = FindMatchingExtensionTemplateURL(
         *data, TemplateURL::NORMAL_CONTROLLED_BY_EXTENSION);
   } else if (source == DefaultSearchManager::FROM_FALLBACK) {
     default_search_provider_ =
         FindPrepopulatedTemplateURL(data->prepopulate_id);
     if (default_search_provider_) {
       TemplateURLData update_data(*data);
@@ skipping 30 matching lines @@
       std::unique_ptr<TemplateURL> new_dse_ptr =
           base::MakeUnique<TemplateURL>(new_data);
       TemplateURL* new_dse = new_dse_ptr.get();
       if (AddNoNotify(std::move(new_dse_ptr), true))
         default_search_provider_ = new_dse;
     }
     if (default_search_provider_ && prefs_) {
       prefs_->SetString(prefs::kSyncedDefaultSearchProviderGUID,
                         default_search_provider_->sync_guid());
     }
-
   }
 
-  default_search_provider_source_ = source;
-
   bool changed = default_search_provider_ != previous_default_search_engine;
   if (changed)
     RequestGoogleURLTrackerServerCheckIfNecessary();
 
   NotifyObservers();
 
   return changed;
 }
 
 TemplateURL* TemplateURLService::AddNoNotify(
@@ skipping 472 matching lines @@
 
   if (most_recently_intalled_default) {
     base::AutoReset<DefaultSearchChangeOrigin> change_origin(
         &dsp_change_origin_, DSP_CHANGE_OVERRIDE_SETTINGS_EXTENSION);
     default_search_manager_.SetExtensionControlledDefaultSearchEngine(
         most_recently_intalled_default->data());
   } else {
     default_search_manager_.ClearExtensionControlledDefaultSearchEngine();
   }
 }