Remove dead code from CookieTreeModel test

No one is calling these methods, instead GetDisplayNodes() is used.

Bug: 843995
Change-Id: I76d5a711527eca20497fdc283ca55e47683b37a3
Reviewed-on: https://chromium-review.googlesource.com/1090283Reviewed-by: Bernhard Bauer <bauerb@chromium.org>
Commit-Queue: Christian Dullweber <dullweber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#566005}

chrome/browser/browsing_data/cookies_tree_model_unittest.cc

@@ -321,65 +321,6 @@ class CookiesTreeModelTest : public testing::Test {
     }
   }
 
-  std::string GetCookiesOfChildren(const CookieTreeNode* node) {
-    return GetNodesOfChildren(node, CookieTreeNode::DetailedInfo::TYPE_COOKIE);
-  }
-
-  std::string GetDatabasesOfChildren(const CookieTreeNode* node) {
-    return GetNodesOfChildren(node,
-                              CookieTreeNode::DetailedInfo::TYPE_DATABASE);
-  }
-
-  std::string GetLocalStoragesOfChildren(const CookieTreeNode* node) {
-    return GetNodesOfChildren(node,
-                              CookieTreeNode::DetailedInfo::TYPE_LOCAL_STORAGE);
-  }
-
-  std::string GetSessionStoragesOfChildren(const CookieTreeNode* node) {
-    return GetNodesOfChildren(
-        node, CookieTreeNode::DetailedInfo::TYPE_SESSION_STORAGE);
-  }
-
-  std::string GetIndexedDBsOfChildren(const CookieTreeNode* node) {
-    return GetNodesOfChildren(
-        node, CookieTreeNode::DetailedInfo::TYPE_INDEXED_DB);
-  }
-
-  std::string GetFileSystemsOfChildren(const CookieTreeNode* node) {
-    return GetNodesOfChildren(
-        node, CookieTreeNode::DetailedInfo::TYPE_FILE_SYSTEM);
-  }
-
-  std::string GetFileQuotaOfChildren(const CookieTreeNode* node) {
-    return GetNodesOfChildren(
-        node, CookieTreeNode::DetailedInfo::TYPE_QUOTA);
-  }
-
-  std::string GetServiceWorkersOfChildren(const CookieTreeNode* node) {
-    return GetNodesOfChildren(
-        node, CookieTreeNode::DetailedInfo::TYPE_SERVICE_WORKER);
-  }
-
-  std::string GetSharedWorkersOfChildren(const CookieTreeNode* node) {
-    return GetNodesOfChildren(node,
-                              CookieTreeNode::DetailedInfo::TYPE_SHARED_WORKER);
-  }
-
-  std::string GetCacheStoragesOfChildren(const CookieTreeNode* node) {
-    return GetNodesOfChildren(node,
-                              CookieTreeNode::DetailedInfo::TYPE_CACHE_STORAGE);
-  }
-
-  std::string GetFlashLSOsOfChildren(const CookieTreeNode* node) {
-    return GetNodesOfChildren(
-        node, CookieTreeNode::DetailedInfo::TYPE_FLASH_LSO);
-  }
-
-  std::string GetMediaLicensesOfChildren(const CookieTreeNode* node) {
-    return GetNodesOfChildren(node,
-                              CookieTreeNode::DetailedInfo::TYPE_MEDIA_LICENSE);
-  }
-
   // Get the nodes names displayed in the view (if we had one) in the order
   // they are displayed, as a comma seperated string.
   // Ex: EXPECT_STREQ("X,Y", GetDisplayedNodes(cookies_view, type).c_str());