Remove most ScopedVector usage from c/b/extensions.

components/sync/device_info/device_count_metrics_provider_unittest.cc

 // Copyright 2016 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 "components/sync/device_info/device_count_metrics_provider.h"
 
 #include <memory>
 #include <string>
 #include <vector>
 
@@ skipping 10 matching lines @@
 class FakeTracker : public DeviceInfoTracker {
  public:
   explicit FakeTracker(const int count) : count_(count) {}
 
   // DeviceInfoTracker
   bool IsSyncing() const override { return false; }
   std::unique_ptr<DeviceInfo> GetDeviceInfo(
       const std::string& client_id) const override {
     return std::unique_ptr<DeviceInfo>();
   }
-  ScopedVector<DeviceInfo> GetAllDeviceInfo() const override {
-    return ScopedVector<DeviceInfo>();
+  std::vector<std::unique_ptr<DeviceInfo>> GetAllDeviceInfo() const override {
+    return std::vector<std::unique_ptr<DeviceInfo>>();
   }
   void AddObserver(Observer* observer) override {}
   void RemoveObserver(Observer* observer) override {}
   int CountActiveDevices() const override { return count_; }
 
  private:
   int count_;
 };
 
 }  // namespace
@@ skipping 52 matching lines @@
 }
 
 TEST_F(DeviceCountMetricsProviderTest, VeryLarge) {
   AddTracker(123456789);
   TestProvider(100);
 }
 
 }  // namespace
 
 }  // namespace sync_driver