Remove the OOP PDF flag

chrome/browser/pdf/pdf_extension_test.cc

Index: chrome/browser/pdf/pdf_extension_test.cc
diff --git a/chrome/browser/pdf/pdf_extension_test.cc b/chrome/browser/pdf/pdf_extension_test.cc
index abf467c65eab265b6f3121c0d47e3b1aeb455727..93512a4d20b4616e9edb89cf7919a20a0f478a0d 100644
--- a/chrome/browser/pdf/pdf_extension_test.cc
+++ b/chrome/browser/pdf/pdf_extension_test.cc
@@ -25,11 +25,6 @@ class PDFExtensionTest : public ExtensionApiTest {
  public:
   ~PDFExtensionTest() override {}
 
-  void SetUpCommandLine(base::CommandLine* command_line) override {
-    ExtensionApiTest::SetUpCommandLine(command_line);
-    command_line->AppendSwitch(switches::kEnableOutOfProcessPdf);
-  }
-
   void SetUpOnMainThread() override {
     ExtensionApiTest::SetUpOnMainThread();
     ASSERT_TRUE(embedded_test_server()->InitializeAndWaitUntilReady());