PDF: Fix a failing find-in-page corner case.

pdf/pdfium/pdfium_engine.h

Index: pdf/pdfium/pdfium_engine.h
diff --git a/pdf/pdfium/pdfium_engine.h b/pdf/pdfium/pdfium_engine.h
index 3a525dcaaf47cd3fe71ff80b87bfd6eecbd9e734..43ea580d8fe6acf9da60a40798fc957159144ae5 100644
--- a/pdf/pdfium/pdfium_engine.h
+++ b/pdf/pdfium/pdfium_engine.h
@@ -274,7 +274,7 @@ class PDFiumEngine : public PDFEngine,
   // Called to continue searching so we don't block the main thread.
   void ContinueFind(int32_t result);
 
-  // Inserts a find result into find_results_, which is sorted.
+  // Inserts a find result into |find_results_|, which is sorted.
   void AddFindResult(const PDFiumRange& result);
 
   // Search a page using PDFium's methods.  Doesn't work with unicode.  This
@@ -644,8 +644,7 @@ class PDFiumEngine : public PDFEngine,
   MouseDownState mouse_down_state_;
 
   // Used for searching.
-  typedef std::vector<PDFiumRange> FindResults;
-  FindResults find_results_;
+  std::vector<PDFiumRange> find_results_;
   // Which page to search next.
   int next_page_to_search_;
   // Where to stop searching.