App list voice searches now prioritize exact-match web results.

ui/app_list/search/mixer.cc

Index: ui/app_list/search/mixer.cc
diff --git a/ui/app_list/search/mixer.cc b/ui/app_list/search/mixer.cc
index cf3fd06be5d0f87e4199617554c0cb952ec50475..e4ef2f59747981d833f5a525dc546ea54a2b0923 100644
--- a/ui/app_list/search/mixer.cc
+++ b/ui/app_list/search/mixer.cc
@@ -57,7 +57,7 @@ class Mixer::Group {
 
   void AddProvider(SearchProvider* provider) { providers_.push_back(provider); }
 
-  void FetchResults(const KnownResults& known_results) {
+  void FetchResults(bool is_voice_query, const KnownResults& known_results) {
     results_.clear();
 
     for (Providers::const_iterator provider_it = providers_.begin();
@@ -94,6 +94,10 @@ class Mixer::Group {
           }
         }
 
+        // If this is a voice query, voice results receive a massive boost.
+        if (is_voice_query && (*result_it)->voice_result())
+          boost += 4.0;
+
         results_.push_back(
             SortData(*result_it, (*result_it)->relevance() + boost));
       }
@@ -135,8 +139,9 @@ void Mixer::AddProviderToGroup(GroupId group, SearchProvider* provider) {
   groups_[group]->AddProvider(provider);
 }
 
-void Mixer::MixAndPublish(const KnownResults& known_results) {
-  FetchResults(known_results);
+void Mixer::MixAndPublish(bool is_voice_query,
+                          const KnownResults& known_results) {
+  FetchResults(is_voice_query, known_results);
 
   SortedResults results;
   results.reserve(kMaxResults);
@@ -247,9 +252,10 @@ void Mixer::RemoveDuplicates(SortedResults* results) {
   results->swap(final);
 }
 
-void Mixer::FetchResults(const KnownResults& known_results) {
+void Mixer::FetchResults(bool is_voice_query,
+                         const KnownResults& known_results) {
   for (const auto& item : groups_)
-    item.second->FetchResults(known_results);
+    item.second->FetchResults(is_voice_query, known_results);
 }
 
 }  // namespace app_list