Add IsCurrentlyLowMemory

third_party/WebKit/Source/platform/MemoryCoordinator.h

Index: third_party/WebKit/Source/platform/MemoryCoordinator.h
diff --git a/third_party/WebKit/Source/platform/MemoryCoordinator.h b/third_party/WebKit/Source/platform/MemoryCoordinator.h
index c8e137b01507cb8905aa481c3084201cb5ad6995..b2bdb2134572f97a9c03fbb7f37067c980fdeaf4 100644
--- a/third_party/WebKit/Source/platform/MemoryCoordinator.h
+++ b/third_party/WebKit/Source/platform/MemoryCoordinator.h
@@ -45,6 +45,10 @@ class PLATFORM_EXPORT MemoryCoordinator final
   // Override the value of the physical memory for testing.
   static void SetPhysicalMemoryMBForTesting(int64_t);
 
+  // Returns true when available memory is low.

[Yaron, 2017/06/14 15:45:09]

Please add a comment that this is not cheap and should not be called repeatedly.

[keishi, 2017/06/19 08:22:26]

Done.

+  // TODO(keishi): Remove when MemoryState is ready.
+  static bool IsCurrentlyLowMemory();
+
   // Caches whether this device is a low-end device and the device physical
   // memory in static members. instance() is not used as it's a heap allocated
   // object - meaning it's not thread-safe as well as might break tests counting