Fix about:sandbox display on Android.

chrome/renderer/sandbox_status_extension_android.cc

 // Copyright 2017 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/renderer/sandbox_status_extension_android.h"
 
 #include "base/android/build_info.h"
 #include "base/bind.h"
 #include "base/files/file_util.h"
 #include "base/memory/ptr_util.h"
@@ skipping 57 matching lines @@
   v8::HandleScope handle_scope(isolate);
   v8::Local<v8::Context> context =
       render_frame()->GetWebFrame()->MainWorldScriptContext();
   if (context.IsEmpty())
     return;
 
   v8::Context::Scope context_scope(context);
 
   v8::Local<v8::Object> chrome =
       content::GetOrCreateChromeObject(isolate, context->Global());
-  DCHECK(chrome->Set(
+  bool success = chrome->Set(
       gin::StringToSymbol(isolate, "getAndroidSandboxStatus"),
       gin::CreateFunctionTemplate(
           isolate, base::Bind(&SandboxStatusExtension::GetSandboxStatus, this))
-          ->GetFunction()));
+          ->GetFunction());
+  DCHECK(success);
 }
 
 void SandboxStatusExtension::GetSandboxStatus(gin::Arguments* args) {
   if (!render_frame())
     return;
 
   if (render_frame()->GetWebFrame()->GetSecurityOrigin().Host() !=
       chrome::kChromeUISandboxHost) {
     args->ThrowTypeError("Not allowed on this origin");
     return;
@@ skipping 54 matching lines @@
   v8::Local<v8::Function> callback_local =
       v8::Local<v8::Function>::New(isolate, *callback);
 
   std::unique_ptr<content::V8ValueConverter> converter(
       content::V8ValueConverter::create());
 
   v8::Local<v8::Value> argv[] = {converter->ToV8Value(status.get(), context)};
   render_frame()->GetWebFrame()->CallFunctionEvenIfScriptDisabled(
       callback_local, v8::Object::New(isolate), 1, argv);
 }