Add new app banner metrics using InstallableStatusCode.

chrome/browser/installable/installable_logging.cc

 // Copyright 2016 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/installable/installable_logging.h"
 
 #include "base/macros.h"
 #include "base/strings/stringprintf.h"
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/web_contents.h"
@@ skipping 54 matching lines @@
 void LogErrorToConsole(content::WebContents* web_contents,
                        InstallableErrorCode code,
                        const std::string& param) {
   if (!web_contents)
     return;
 
   content::ConsoleMessageLevel severity = content::CONSOLE_MESSAGE_LEVEL_ERROR;
   const char* pattern = nullptr;
   switch (code) {
     case NO_ERROR_DETECTED:
+    // These codes are solely used for UMA reporting.
+    case ALREADY_INSTALLED:
+    case INSUFFICIENT_ENGAGEMENT:
+    case PACKAGE_NAME_OR_START_URL_EMPTY:
+    case PREVIOUSLY_BLOCKED:
+    case PREVIOUSLY_IGNORED:
+    case SHOWING_NATIVE_APP_BANNER:
+    case SHOWING_WEB_APP_BANNER:
+    case FAILED_TO_CREATE_BANNER:
     case MAX_ERROR_CODE:
       return;
     case RENDERER_EXITING:
       pattern = kRendererExitingMessage;
       break;
     case RENDERER_CANCELLED:
       pattern = kRendererCancelledMessage;
       severity = content::CONSOLE_MESSAGE_LEVEL_LOG;
       break;
     case USER_NAVIGATED:
@@ skipping 48 matching lines @@
       break;
   }
 
   if (!pattern)
     return;
   std::string message = param.empty() ?
       pattern : base::StringPrintf(pattern, param.c_str());
   web_contents->GetMainFrame()->AddMessageToConsole(
       severity, GetMessagePrefix() + message);
 }