Fix free memory calculation.

content/browser/memory/memory_monitor_win_unittest.cc

 // Copyright (c) 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 "content/browser/memory/memory_monitor_win.h"
 
 #include "content/browser/memory/test_memory_monitor.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace content {
 
 namespace {
 
 // A delegate that allows mocking the various inputs to MemoryMonitorWin.
 class TestMemoryMonitorWinDelegate : public TestMemoryMonitorDelegate {
  public:
   TestMemoryMonitorWinDelegate() {}
 
   void SetFreeMemoryKB(int free_memory_kb) {
-    mem_info_.free = free_memory_kb;
+    mem_info_.avail_phys = free_memory_kb;
   }
 
  private:
   DISALLOW_COPY_AND_ASSIGN(TestMemoryMonitorWinDelegate);
 };
 
 class TestMemoryMonitorWin : public MemoryMonitorWin {
  public:
   using MemoryMonitorWin::IsLargeMemory;
   using MemoryMonitorWin::GetTargetFreeMB;
@@ skipping 98 matching lines @@
   EXPECT_EQ(1u, delegate_.calls());
   delegate_.ResetCalls();
 
   delegate_.SetFreeMemoryKB(50 * kKBperMB);
   EXPECT_EQ(-50, monitor_->GetFreeMemoryUntilCriticalMB());
   EXPECT_EQ(1u, delegate_.calls());
   delegate_.ResetCalls();
 }
 
 }  // namespace content