Memory-monitor for Mac.

content/browser/memory/test_memory_monitor.cc

Index: content/browser/memory/test_memory_monitor.cc
diff --git a/content/browser/memory/test_memory_monitor.cc b/content/browser/memory/test_memory_monitor.cc
index a9bf419a27694cff1a2128bbca1a9811f2b4aaf0..abb1c002f8ddd2e734299febec9a59fcae0900a7 100644
--- a/content/browser/memory/test_memory_monitor.cc
+++ b/content/browser/memory/test_memory_monitor.cc
@@ -14,4 +14,10 @@ void TestMemoryMonitorDelegate::GetSystemMemoryInfo(
   ++calls_;
 }
 
+bool TestMemoryMonitorDelegate::GetSystemMemoryPressure(int* mem_pressure) {
+  *mem_pressure = mem_pressure_;
+  ++calls_;
+  return mem_pressure_valid_;
+}
+
 }  // namespace content