Add MemoryCoordinatorClient

third_party/WebKit/public/platform/WebMemoryCoordinator.h

Index: third_party/WebKit/public/platform/WebMemoryCoordinator.h
diff --git a/third_party/WebKit/public/web/WebMemoryCoordinator.h b/third_party/WebKit/public/platform/WebMemoryCoordinator.h
similarity index 75%
rename from third_party/WebKit/public/web/WebMemoryCoordinator.h
rename to third_party/WebKit/public/platform/WebMemoryCoordinator.h
index 306b961c12f4523ff7079eacaa6deee5320a9b03..ff2513a636ad612238d8b46e8866ee5df6897454 100644
--- a/third_party/WebKit/public/web/WebMemoryCoordinator.h
+++ b/third_party/WebKit/public/platform/WebMemoryCoordinator.h
@@ -13,7 +13,12 @@ namespace blink {
 class WebMemoryCoordinator {
 public:
     // Called when a memory pressure notification is received.
+    // TODO(bashi): Deprecating. Remove this when MemoryPressureListener is
+    // gone.
     BLINK_EXPORT static void onMemoryPressure(WebMemoryPressureLevel);
+
+    // Called when Blink should purge caches.
+    BLINK_EXPORT static void purgeMemory();

[tasak, 2016/08/15 08:12:24]

BLINK_PLATFORM_EXPORT?
Because:
e:\b\c\b\win\src\third_party\webkit\source\platform\exported\webmemorycoordinator.cpp(17):
warning C4273: 'blink::WebMemoryCoordinator::purgeMemory': inconsistent dll
linkage
e:\b\c\b\win\src\third_party\webkit\public\platform\webmemorycoordinator.h(21):
note: see previous definition of 'purgeMemory'

[bashi, 2016/08/16 00:09:07]

Done.

 };
 
 } // namespace blink