Spellcheck : Fix caching in cases where text is deleted.

components/spellcheck/renderer/spellcheck_provider_test.h

Index: components/spellcheck/renderer/spellcheck_provider_test.h
diff --git a/components/spellcheck/renderer/spellcheck_provider_test.h b/components/spellcheck/renderer/spellcheck_provider_test.h
index 3ef9d965a31d90c520cb1cc9c04216e5db463571..8d8b6fc9b6d68353ae93a488c1fa5df6aacdb7ff 100644
--- a/components/spellcheck/renderer/spellcheck_provider_test.h
+++ b/components/spellcheck/renderer/spellcheck_provider_test.h
@@ -50,6 +50,12 @@ class TestingSpellCheckProvider : public SpellCheckProvider {
                              const std::vector<SpellCheckMarker>& markers);
   void ResetResult();
 
+  void SetLastResults(
+      const base::string16 last_request,
+      blink::WebVector<blink::WebTextCheckingResult>& last_results);
+  bool SatisfyRequestFromCache(const base::string16& text,
+                               blink::WebTextCheckingCompletion* completion);
+
   base::string16 text_;
   ScopedVector<IPC::Message> messages_;
   size_t spelling_service_call_count_;