Prepopulate the Find box with whatever was searched for last

chrome/browser/tab_contents/web_contents.h

Index: chrome/browser/tab_contents/web_contents.h
===================================================================
--- chrome/browser/tab_contents/web_contents.h	(revision 13523)
+++ chrome/browser/tab_contents/web_contents.h	(working copy)
@@ -225,6 +225,10 @@
   // active searches.
   string16 find_text() const { return find_text_; }
 
+  // Accessor for find_prepopulate_text_. Used to access the last search
+  // string entered, whatever tab that search was performed in.
+  string16 find_prepopulate_text() const { return *find_prepopulate_text_; }
+
   // Accessor for find_result_.
   const FindNotificationDetails& find_result() const { return find_result_; }
 
@@ -697,6 +701,9 @@
   // Find or a FindNext operation (FindNext should not increase the request id).
   string16 find_text_;
 
+  // Keeps track of the last search string that was used to search in any tab.
+  string16* find_prepopulate_text_;
+
   // The last find result. This object contains details about the number of
   // matches, the find selection rectangle, etc. The UI can access this
   // information to build its presentation.