<linked_ptr> is deprecated

Bug: 833834
Change-Id: I4eb15bf48c996adad73f72597718b82af1069654
Reviewed-on: https://chromium-review.googlesource.com/1045948
Commit-Queue: Noel Gordon <noel@chromium.org>
Reviewed-by: Stuart Langley <slangley@chromium.org>
Cr-Commit-Position: refs/heads/master@{#556361}

chrome/browser/chromeos/file_manager/file_manager_browsertest_base.cc

@@ -582,7 +582,7 @@ void FileManagerBrowserTestBase::SetUpOnMainThread() {
     CHECK(embedded_test_server()->Start());
     const GURL share_url_base(embedded_test_server()->GetURL(
         "/chromeos/file_manager/share_dialog_mock/index.html"));
-    drive_volume_ = drive_volumes_[profile()->GetOriginalProfile()];
+    drive_volume_ = std::move(drive_volumes_[profile()->GetOriginalProfile()]);
     drive_volume_->ConfigureShareUrlBase(share_url_base);
     test_util::WaitUntilDriveMountPointIsAdded(profile());
   }
@@ -724,7 +724,7 @@ void FileManagerBrowserTestBase::OnCommand(const std::string& name,
           local_volume_->CreateEntry(*message.entries[i]);
           break;
         case DRIVE_VOLUME:
-          if (drive_volume_.get())
+          if (drive_volume_)
             drive_volume_->CreateEntry(*message.entries[i]);
           break;
         case USB_VOLUME:

chrome/browser/chromeos/file_manager/file_manager_browsertest_base.h

@@ -6,9 +6,9 @@
 #define CHROME_BROWSER_CHROMEOS_FILE_MANAGER_FILE_MANAGER_BROWSERTEST_BASE_H_
 
 #include <map>
+#include <memory>
 #include <string>
 
-#include "base/memory/linked_ptr.h"
 #include "base/values.h"
 #include "chrome/browser/chromeos/drive/drive_integration_service.h"
 #include "chrome/browser/extensions/extension_apitest.h"
@@ -77,8 +77,8 @@ class FileManagerBrowserTestBase : public ExtensionApiTest {
                  std::string* output);
 
   std::unique_ptr<LocalTestVolume> local_volume_;
-  linked_ptr<DriveTestVolume> drive_volume_;
-  std::map<Profile*, linked_ptr<DriveTestVolume>> drive_volumes_;
+  std::unique_ptr<DriveTestVolume> drive_volume_;
+  std::map<Profile*, std::unique_ptr<DriveTestVolume>> drive_volumes_;
   std::unique_ptr<FakeTestVolume> usb_volume_;
   std::unique_ptr<FakeTestVolume> mtp_volume_;