Control distillability with command-line flag

chrome/browser/dom_distiller/distillable_page_utils_browsertest.cc

 // Copyright 2015 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 <string.h>
 
 #include "base/command_line.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
@@ skipping 78 matching lines @@
 
 }  // namespace
 
 template<const char Option[]>
 class DistillablePageUtilsBrowserTestOption : public InProcessBrowserTest {
  public:
   void SetUpCommandLine(base::CommandLine* command_line) override {
     command_line->AppendSwitch(switches::kEnableDomDistiller);
     command_line->AppendSwitchASCII(switches::kReaderModeHeuristics,
         Option);
+    command_line->AppendSwitch(switches::kEnableDistillabilityService);
   }
 
   void SetUpOnMainThread() override {
     InProcessBrowserTest::SetUpOnMainThread();
     ASSERT_TRUE(embedded_test_server()->Start());
     web_contents_ =
         browser()->tab_strip_model()->GetActiveWebContents();
     setDelegate(web_contents_, holder_.GetDelegate());
   }
 
@@ skipping 86 matching lines @@
   {
     testing::InSequence dummy;
     EXPECT_CALL(holder_, OnResult(false, false)).Times(1);
     EXPECT_CALL(holder_, OnResult(false, true))
         .WillOnce(testing::InvokeWithoutArgs(QuitSoon));
     NavigateAndWait(kNonArticlePath, 0);
   }
 }
 
 }  // namespace dom_distiller