Use the serviceworker with mojo by default

content/browser/service_worker/service_worker_browsertest.cc

Index: content/browser/service_worker/service_worker_browsertest.cc
diff --git a/content/browser/service_worker/service_worker_browsertest.cc b/content/browser/service_worker/service_worker_browsertest.cc
index 81b4ffce99d49bcc581f3a515d16bdd669c0cd40..ad010fc603dc5a3df4d1706f9e79a7afb6e5d899 100644
--- a/content/browser/service_worker/service_worker_browsertest.cc
+++ b/content/browser/service_worker/service_worker_browsertest.cc
@@ -336,20 +336,11 @@ void CountScriptResources(
 
 }  // namespace
 
-class ServiceWorkerBrowserTest : public testing::WithParamInterface<bool>,
-                                 public ContentBrowserTest {
+class ServiceWorkerBrowserTest
+    : public MojoServiceWorkerTestP<ContentBrowserTest> {
  protected:
   using self = ServiceWorkerBrowserTest;
 
-  void SetUp() override {
-    is_mojo_enabled_ = GetParam();
-    if (is_mojo_enabled()) {
-      base::CommandLine::ForCurrentProcess()->AppendSwitch(
-          switches::kMojoServiceWorker);
-    }
-    ContentBrowserTest::SetUp();
-  }
-
   void SetUpOnMainThread() override {
     ASSERT_TRUE(embedded_test_server()->Start());
     StoragePartition* partition = BrowserContext::GetDefaultStoragePartition(
@@ -377,7 +368,6 @@ class ServiceWorkerBrowserTest : public testing::WithParamInterface<bool>,
 
   ServiceWorkerContextWrapper* wrapper() { return wrapper_.get(); }
   ServiceWorkerContext* public_context() { return wrapper(); }
-  bool is_mojo_enabled() const { return is_mojo_enabled_; }
 
   void AssociateRendererProcessToPattern(const GURL& pattern) {
     wrapper_->process_manager()->AddProcessReferenceToPattern(
@@ -386,7 +376,6 @@ class ServiceWorkerBrowserTest : public testing::WithParamInterface<bool>,
 
  private:
   scoped_refptr<ServiceWorkerContextWrapper> wrapper_;
-  bool is_mojo_enabled_ = false;
 };
 
 class ConsoleListener : public EmbeddedWorkerInstance::Listener {