filemanager: Add a browsertest for the sidebar item "Shared with Me".

chrome/browser/google_apis/fake_drive_service.h

Index: chrome/browser/google_apis/fake_drive_service.h
diff --git a/chrome/browser/google_apis/fake_drive_service.h b/chrome/browser/google_apis/fake_drive_service.h
index b99c09ef0f3d438621850487fae24397db5b864a..60011ad737cc3b5b1236b7c5db932fe1b8918c5c 100644
--- a/chrome/browser/google_apis/fake_drive_service.h
+++ b/chrome/browser/google_apis/fake_drive_service.h
@@ -188,6 +188,7 @@ class FakeDriveService : public DriveServiceInterface {
                   int64 content_length,
                   const std::string& parent_resource_id,
                   const std::string& title,
+                  bool shared_with_me,
                   const GetResourceEntryCallback& callback);
 
   // Sets the last modified time for an entry specified by |resource_id|.
@@ -225,6 +226,7 @@ class FakeDriveService : public DriveServiceInterface {
     int64 content_length,
     const std::string& parent_resource_id,
     const std::string& title,
+    bool shared_with_me,
     const std::string& entry_kind);
 
   // Core implementation of GetResourceList.