[Translate] Integrate TranslateEventProto UMA logging into TranslateManager.

chrome/browser/ui/translate/translate_bubble_factory.cc

 // 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.
 
 #include "chrome/browser/ui/translate/translate_bubble_factory.h"
 
 #include "chrome/browser/ui/browser_finder.h"
 #include "chrome/browser/ui/browser_window.h"
 
 namespace {
 
-void ShowDefault(BrowserWindow* window,
-                 content::WebContents* web_contents,
-                 translate::TranslateStep step,
-                 translate::TranslateErrors::Type error_type) {
+ShowTranslateBubbleResult ShowDefault(
+    BrowserWindow* window,
+    content::WebContents* web_contents,
+    translate::TranslateStep step,
+    translate::TranslateErrors::Type error_type) {
   // |window| might be null when testing.
   if (!window)
-    return;
-  window->ShowTranslateBubble(web_contents, step, error_type, false);
+    return ShowTranslateBubbleResult::BROWSER_WINDOW_NOT_VALID;
+  return window->ShowTranslateBubble(web_contents, step, error_type, false);
 }
 
 }  // namespace
 
 TranslateBubbleFactory::~TranslateBubbleFactory() {
 }
 
 // static
-void TranslateBubbleFactory::Show(BrowserWindow* window,
-                                  content::WebContents* web_contents,
-                                  translate::TranslateStep step,
-                                  translate::TranslateErrors::Type error_type) {
+ShowTranslateBubbleResult TranslateBubbleFactory::Show(
+    BrowserWindow* window,
+    content::WebContents* web_contents,
+    translate::TranslateStep step,
+    translate::TranslateErrors::Type error_type) {
   if (current_factory_) {
-    current_factory_->ShowImplementation(
-        window, web_contents, step, error_type);
-    return;
+    return current_factory_->ShowImplementation(window, web_contents, step,
+                                                error_type);
   }
 
-  ShowDefault(window, web_contents, step, error_type);
+  return ShowDefault(window, web_contents, step, error_type);
 }
 
 // static
 void TranslateBubbleFactory::SetFactory(TranslateBubbleFactory* factory) {
   current_factory_ = factory;
 }
 
 // static
 TranslateBubbleFactory* TranslateBubbleFactory::current_factory_ = NULL;