Allow command-line arguments to override EF public key

content/app/content_main_runner.cc

 // 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.
 
 #include "content/public/app/content_main_runner.h"
 
 #include <stddef.h>
 #include <stdlib.h>
 #include <string.h>
 
@@ skipping 235 matching lines @@
     if (process_type == switches::kUtilityProcess ||
         base::CommandLine::ForCurrentProcess()->HasSwitch(
             switches::kSingleProcess)) {
       if (delegate)
         content_client->utility_ = delegate->CreateContentUtilityClient();
       // TODO(scottmg): http://crbug.com/237249 Should be in _child.
       if (!content_client->utility_)
         content_client->utility_ = &g_empty_content_utility_client.Get();
     }
 #endif  // !CHROME_MULTIPLE_DLL_BROWSER
+    content_client->InitializeOriginTrials();

[jam, 2016/04/21 17:56:19]

instead of adding a new ContentClient method, which we only do if necessary per
https://www.chromium.org/developers/content-module/content-api, can you use
existing methods on ContentMainDelegate? i.e. BasicStartupComplete?

[iclelland, 2016/04/25 15:26:18]

Yes I can. Other content embedders will need to follow the same logic if they
want this feature, in that case, but it will be easy enough for them to do that.
(And it's not a required feature; unless they want omaha/finch-style updating of
origin trials configuration, it's not needed at all).

   }
 };
 
 // We dispatch to a process-type-specific FooMain() based on a command-line
 // flag.  This struct is used to build a table of (flag, main function) pairs.
 struct MainFunction {
   const char* name;
   int (*function)(const MainFunctionParams&);
 };
 
@@ skipping 532 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(ContentMainRunnerImpl);
 };
 
 // static
 ContentMainRunner* ContentMainRunner::Create() {
   return new ContentMainRunnerImpl();
 }
 
 }  // namespace content