Replace string16 with base::string16.

chrome/browser/chromeos/memory/oom_priority_manager.h

Index: chrome/browser/chromeos/memory/oom_priority_manager.h
diff --git a/chrome/browser/chromeos/memory/oom_priority_manager.h b/chrome/browser/chromeos/memory/oom_priority_manager.h
index 4fea9ed159f9427e4699e2305d21b452dd8d24cc..3df538ebddccb3b144de5fe257e24bc50e6f3677 100644
--- a/chrome/browser/chromeos/memory/oom_priority_manager.h
+++ b/chrome/browser/chromeos/memory/oom_priority_manager.h
@@ -52,7 +52,7 @@ class OomPriorityManager : public content::NotificationObserver,
 
   // Returns list of tab titles sorted from most interesting (don't kill)
   // to least interesting (OK to kill).
-  std::vector<string16> GetTabTitles();
+  std::vector<base::string16> GetTabTitles();
 
   // Discards a tab to free the memory occupied by its renderer.
   // Tab still exists in the tab-strip; clicking on it will reload it.
@@ -80,7 +80,7 @@ class OomPriorityManager : public content::NotificationObserver,
     bool is_discarded;
     base::TimeTicks last_selected;
     base::ProcessHandle renderer_handle;
-    string16 title;
+    base::string16 title;
     int64 tab_contents_id;  // unique ID per WebContents
   };
   typedef std::vector<TabStats> TabStatsList;