Convert //extensions/browser from scoped_ptr to std::unique_ptr

extensions/browser/extension_throttle_unittest.cc

Index: extensions/browser/extension_throttle_unittest.cc
diff --git a/extensions/browser/extension_throttle_unittest.cc b/extensions/browser/extension_throttle_unittest.cc
index e894ee68367381b98b3b7abed8510242efd7d897..34ae8234cd15ce880c9daaf60d4cdcd810342baa 100644
--- a/extensions/browser/extension_throttle_unittest.cc
+++ b/extensions/browser/extension_throttle_unittest.cc
@@ -2,8 +2,9 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include <memory>
+
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop.h"
 #include "base/pickle.h"
 #include "base/stl_util.h"
@@ -176,7 +177,7 @@ class ExtensionThrottleEntryTest : public testing::Test {
   base::MessageLoopForIO message_loop_;
 
   TestURLRequestContext context_;
-  scoped_ptr<URLRequest> request_;
+  std::unique_ptr<URLRequest> request_;
 };
 
 void ExtensionThrottleEntryTest::SetUp() {
@@ -357,7 +358,7 @@ class ExtensionThrottleManagerTest : public testing::Test {
   base::MessageLoopForIO message_loop_;
   // context_ must be declared before request_.
   TestURLRequestContext context_;
-  scoped_ptr<URLRequest> request_;
+  std::unique_ptr<URLRequest> request_;
 };
 
 TEST_F(ExtensionThrottleManagerTest, IsUrlStandardised) {