Convert //extensions/{common,shell} from scoped_ptr to std::unique_ptr

extensions/common/event_filter.h

Index: extensions/common/event_filter.h
diff --git a/extensions/common/event_filter.h b/extensions/common/event_filter.h
index 8f6d60404200629f7d4cf9f6e837ca63737ee720..567c1d0867651121c8e051d56cb4d8f661567207 100644
--- a/extensions/common/event_filter.h
+++ b/extensions/common/event_filter.h
@@ -28,7 +28,7 @@ class EventFilter {
   // Adds an event matcher that will be used in calls to MatchEvent(). Returns
   // the id of the matcher, or -1 if there was an error.
   MatcherID AddEventMatcher(const std::string& event_name,
-                            scoped_ptr<EventMatcher> matcher);
+                            std::unique_ptr<EventMatcher> matcher);
 
   // Retrieve the EventMatcher with the given id.
   EventMatcher* GetEventMatcher(MatcherID id);
@@ -63,7 +63,7 @@ class EventFilter {
     // URLMatcherConditionSets that match the URL constraints specified by
     // |event_matcher|.
     EventMatcherEntry(
-        scoped_ptr<EventMatcher> event_matcher,
+        std::unique_ptr<EventMatcher> event_matcher,
         url_matcher::URLMatcher* url_matcher,
         const url_matcher::URLMatcherConditionSet::Vector& condition_sets);
     ~EventMatcherEntry();
@@ -79,7 +79,7 @@ class EventFilter {
     }
 
    private:
-    scoped_ptr<EventMatcher> event_matcher_;
+    std::unique_ptr<EventMatcher> event_matcher_;
     // The id sets in url_matcher_ that this EventMatcher owns.
     std::vector<url_matcher::URLMatcherConditionSet::ID> condition_set_ids_;
     url_matcher::URLMatcher* url_matcher_;