Removed limitation on searching frames for the same string prefix.

third_party/WebKit/Source/web/TextFinder.h

Index: third_party/WebKit/Source/web/TextFinder.h
diff --git a/third_party/WebKit/Source/web/TextFinder.h b/third_party/WebKit/Source/web/TextFinder.h
index 6c04b1e98f1fd334c3cc3090178663b42bdc3ea9..0b6c75b60fa2b8d4680ec87fd4e4c7b99482a290 100644
--- a/third_party/WebKit/Source/web/TextFinder.h
+++ b/third_party/WebKit/Source/web/TextFinder.h
@@ -226,16 +226,8 @@ class WEB_EXPORT TextFinder final
   // search; the new search should start from this position.
   Member<Range> m_resumeScopingFromRange;
 
-  // Keeps track of the last string this frame searched for. This is used for
-  // short-circuiting searches in the following scenarios: When a frame has
-  // been searched and returned 0 results, we don't need to search that frame
-  // again if the user is just adding to the search (making it more specific).
-  WTF::String m_lastSearchString;
-
   // Keeps track of how many matches this frame has found so far, so that we
-  // don't lose count between scoping efforts, and is also used (in conjunction
-  // with m_lastSearchString) to figure out if we need to search the frame
-  // again.
+  // don't lose count between scoping efforts.
   int m_lastMatchCount;
 
   // This variable keeps a cumulative total of matches found so far in this
@@ -276,10 +268,6 @@ class WEB_EXPORT TextFinder final
   // Keeps track of whether there is an scoping effort ongoing in the frame.
   bool m_scopingInProgress;
 
-  // Keeps track of whether the last find request completed its scoping effort
-  // without finding any matches in this frame.
-  bool m_lastFindRequestCompletedWithNoMatches;
-
   // Determines if the rects in the find-in-page matches cache of this frame
   // are invalid and should be recomputed.
   bool m_findMatchRectsAreValid;