Delete old and unused injection_test_mac.h

Change-Id: Ib204efb0b0bdebf3188da7e8afd153ace9efbcf2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2452569
Commit-Queue: Avi Drissman <avi@chromium.org>
Auto-Submit: Robert Sesek <rsesek@chromium.org>
Reviewed-by: Avi Drissman <avi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#814228}

content/public/common/BUILD.gn

@@ -188,10 +188,6 @@ source_set("common_sources") {
     sources += [ "common_sandbox_support_linux.h" ]
   }
 
-  if (is_mac) {
-    sources += [ "injection_test_mac.h" ]
-  }
-
   configs += [
     "//build/config:precompiled_headers",
     "//content:content_implementation",

content/public/common/injection_test_mac.h

-// Copyright (c) 2011 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_COMMON_INJECTION_TEST_MAC_H_
-#define CONTENT_PUBLIC_COMMON_INJECTION_TEST_MAC_H_
-
-#import <Foundation/Foundation.h>
-
-#include <string>
-
-// Callback function used by sandbox tests to print error messages. It's
-// provided in order to avoid linking the logging code of the renderer into this
-// loadable bundle. RendererMainPlatformDelegate provides an implementation.
-//
-//   |message|  - the message that's printed.
-//   |is_error| - true if this is an error message, false if an info message.
-typedef void (*LogRendererSandboxTestMessage)(std::string message,
-                                              bool is_error);
-
-// An ObjC wrapper around sandbox tests.
-@interface RendererSandboxTestsRunner : NSObject
-
-// Sets the function that logs the progress of the tests.
-+ (void)setLogFunction:(LogRendererSandboxTestMessage)logFunction;
-
-// Runs all tests and logs its progress using the provided log function.
-// Returns YES if all tests passed, NO otherwise. This method should be called
-// after the sandbox has been turned on.
-+ (BOOL)runTests;
-
-@end
-
-#endif  // CONTENT_PUBLIC_COMMON_INJECTION_TEST_MAC_H_