Send TranslateEventProtos to UMA.

chrome/browser/translate/chrome_translate_client.h

 // Copyright 2014 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_TRANSLATE_CHROME_TRANSLATE_CLIENT_H_
 #define CHROME_BROWSER_TRANSLATE_CHROME_TRANSLATE_CLIENT_H_
 
 #include <memory>
 #include <string>
 
@@ skipping 18 matching lines @@
 class PrefService;
 
 namespace translate {
 class LanguageModel;
 class LanguageState;
 class TranslateAcceptLanguages;
 class TranslatePrefs;
 class TranslateManager;
 }  // namespace translate
 
+namespace metrics {
+class TranslateEventProto;
+}  // namespace metrics
+
 class ChromeTranslateClient
     : public translate::TranslateClient,
       public translate::ContentTranslateDriver::Observer,
       public content::WebContentsObserver,
       public content::WebContentsUserData<ChromeTranslateClient> {
  public:
   ~ChromeTranslateClient() override;
 
   // Gets the LanguageState associated with the page.
   translate::LanguageState& GetLanguageState();
@@ skipping 27 matching lines @@
       content::RenderFrameHost* render_frame_host,
       translate::mojom::ContentTranslateDriverRequest request);
 
   // Gets the associated TranslateManager.
   translate::TranslateManager* GetTranslateManager();
 
   // Gets the associated WebContents. Returns NULL if the WebContents is being
   // destroyed.
   content::WebContents* GetWebContents();
 
+  // Record a TranslateEventProto. If the metrics provider is not accessible,
+  // returns false.
+  bool RecordTranslateEvent(

[Roger McFarlane (Chromium), 2016/10/12 18:18:28]

this entry point isn't needed. The TranslateManager has direct access to the
TranslateRanker, so doesn't need to go through the client.

[hamelphi, 2016/10/12 21:06:09]

Done.

+      const metrics::TranslateEventProto& translate_event);
+
   // TranslateClient implementation.
   translate::TranslateDriver* GetTranslateDriver() override;
   PrefService* GetPrefs() override;
   std::unique_ptr<translate::TranslatePrefs> GetTranslatePrefs() override;
   translate::TranslateAcceptLanguages* GetTranslateAcceptLanguages() override;
   int GetInfobarIconID() const override;
 #if !defined(USE_AURA)
   std::unique_ptr<infobars::InfoBar> CreateInfoBar(
       std::unique_ptr<translate::TranslateInfoBarDelegate> delegate)
       const override;
@@ skipping 28 matching lines @@
   std::unique_ptr<translate::TranslateManager> translate_manager_;
 
   // Model to be notified about detected language of every page visited. Not
   // owned here.
   translate::LanguageModel* language_model_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeTranslateClient);
 };
 
 #endif  // CHROME_BROWSER_TRANSLATE_CHROME_TRANSLATE_CLIENT_H_