Revert of Handle long press in PDF documents.

pdf/pdf_engine.h

Index: pdf/pdf_engine.h
diff --git a/pdf/pdf_engine.h b/pdf/pdf_engine.h
index ac18b5eb7bd0c1c62453561b461abfdd198f9279..3a271e2d1cd178d059acb588f8d5fbac91c08bcf 100644
--- a/pdf/pdf_engine.h
+++ b/pdf/pdf_engine.h
@@ -140,12 +140,9 @@
     // Creates and returns new URL loader for partial document requests.
     virtual pp::URLLoader CreateURLLoader() = 0;
 
-    // Calls the client's OnCallback() function in |delay_in_ms| with the given
-    // |id|.
+    // Calls the client's OnCallback() function in delay_in_ms with the given
+    // id.
     virtual void ScheduleCallback(int id, int delay_in_ms) = 0;
-    // Calls the client's OnTouchTimerCallback() function in |delay_in_ms| with
-    // the given |id|.
-    virtual void ScheduleTouchTimerCallback(int id, int delay_in_ms) = 0;
 
     // Searches the given string for "term" and returns the results.  Unicode-
     // aware.
@@ -254,8 +251,6 @@
   virtual void SetGrayscale(bool grayscale) = 0;
   // Callback for timer that's set with ScheduleCallback().
   virtual void OnCallback(int id) = 0;
-  // Callback for timer that's set with ScheduleTouchTimerCallback().
-  virtual void OnTouchTimerCallback(int id) = 0;
   // Get the number of characters on a given page.
   virtual int GetCharCount(int page_index) = 0;
   // Get the bounds in page pixels of a character on a given page.