TabManager: Set OOM scores via a new debugd interface on ChromeOS.

chrome/browser/memory/tab_manager_delegate_chromeos_unittest.cc

 // Copyright (c) 2012 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 "chrome/browser/memory/tab_manager_delegate_chromeos.h"
 
 #include <algorithm>
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 100 matching lines @@
     return killed_tabs_;
   }
 
   // unit test.
   void Clear() {
     killed_arc_processes_.clear();
     killed_tabs_.clear();
   }
 
  protected:
-  // Nullify the operation for unit test.
-  void SetOomScoreAdjForTabs(
-      const std::vector<std::pair<base::ProcessHandle, int>>& entries)
-      override {}
-
   bool KillArcProcess(const int nspid) override {
     killed_arc_processes_.push_back(nspid);
     return true;
   }
 
   bool KillTab(int64_t tab_id) override {
     killed_tabs_.push_back(tab_id);
     return true;
   }
 
@@ skipping 161 matching lines @@
   // Killed tabs and their content id.
   // Note that process with pid 11 is counted twice. But so far I don't have a
   // good way to estimate the memory freed if multiple tabs share one process.
   EXPECT_EQ(3U, killed_tabs.size());
   EXPECT_EQ(2, killed_tabs[0]);
   EXPECT_EQ(5, killed_tabs[1]);
   EXPECT_EQ(1, killed_tabs[2]);
 }
 
 }  // namespace memory