Expose GetLoggingFileName in ContentBrowserClient.

content/public/browser/content_browser_client.h

 // Copyright (c) 2012 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 CONTENT_PUBLIC_BROWSER_CONTENT_BROWSER_CLIENT_H_
 #define CONTENT_PUBLIC_BROWSER_CONTENT_BROWSER_CLIENT_H_
 
 #include <stddef.h>
 
 #include <map>
@@ skipping 302 matching lines @@
   // This is called on the UI and IO threads.
   virtual std::string GetApplicationLocale();
 
   // Returns the languages used in the Accept-Languages HTTP header.
   // (Not called GetAcceptLanguages so it doesn't clash with win32).
   virtual std::string GetAcceptLangs(BrowserContext* context);
 
   // Returns the default favicon.  The callee doesn't own the given bitmap.
   virtual const gfx::ImageSkia* GetDefaultFavicon();
 
+  // Returns the fully qualified path to the log file name, or an empty path.

[Charlie Reis, 2017/06/06 17:14:10]

Might be worth mentioning why this is useful (e.g., so sandbox can make it
available, presumably?).  Otherwise people may think they should write to it
directly.

[Greg K, 2017/06/06 17:18:17]

Done.

+  virtual base::FilePath GetLoggingFileName();
+
   // Allow the embedder to control if an AppCache can be used for the given url.
   // This is called on the IO thread.
   virtual bool AllowAppCache(const GURL& manifest_url,
                              const GURL& first_party,
                              ResourceContext* context);
 
   // Allow the embedder to control if a Service Worker can be associated
   // with the given scope.
   // A null |wc_getter| callback indicates this is for starting a service
   // worker, which is not necessarily associated with a particular tab.
@@ skipping 480 matching lines @@
   virtual bool ShouldRedirectDOMStorageTaskRunner();
 
   // If this returns true, all BrowserThreads (but UI/IO) that support it on
   // this platform will experimentally be redirected to TaskScheduler.
   virtual bool RedirectNonUINonIOBrowserThreadsToTaskScheduler();
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_CONTENT_BROWSER_CLIENT_H_