Updates the histograms for IMF and IMEs according to the new design.

chrome/browser/chromeos/input_method/input_method_engine.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_CHROMEOS_INPUT_METHOD_INPUT_METHOD_ENGINE_H_
 #define CHROME_BROWSER_CHROMEOS_INPUT_METHOD_INPUT_METHOD_ENGINE_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 73 matching lines @@
   virtual void Disable() OVERRIDE;
   virtual void PropertyActivate(const std::string& property_name) OVERRIDE;
   virtual void Reset() OVERRIDE;
   virtual void ProcessKeyEvent(const ui::KeyEvent& key_event,
                                const KeyEventDoneCallback& callback) OVERRIDE;
   virtual void CandidateClicked(uint32 index) OVERRIDE;
   virtual void SetSurroundingText(const std::string& text, uint32 cursor_pos,
                                   uint32 anchor_pos) OVERRIDE;
   virtual void HideInputView() OVERRIDE;
 
+  int GetCotextIdForTesting() { return context_id_; }
+
  private:
-  void RecordHistogram(const char* name, int count);
-
   // Converts MenuItem to InputMethodMenuItem.
   void MenuItemToProperty(const MenuItem& item,
                           ash::ime::InputMethodMenuItem* property);
 
   // Enables overriding input view page to Virtual Keyboard window.
   void EnableInputView();
 
   ui::TextInputType current_input_type_;
 
   // ID that is used for the current input context.  False if there is no focus.
@@ skipping 26 matching lines @@
 
   // Mapping of candidate index to candidate id.
   std::vector<int> candidate_ids_;
 
   // Mapping of candidate id to index.
   std::map<int, int> candidate_indexes_;
 
   // Used with SendKeyEvents and ProcessKeyEvent to check if the key event
   // sent to ProcessKeyEvent is sent by SendKeyEvents.
   const ui::KeyEvent* sent_key_event_;
-
-  // The start & end time of using this input method. This is for UMA.
-  base::Time start_time_;
-  base::Time end_time_;
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_INPUT_METHOD_INPUT_METHOD_ENGINE_H_