Add MemoryCoordinator

third_party/WebKit/public/web/WebMemoryCoordinator.h

 // Copyright 2015 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.
 
 #ifndef WebMemoryCoordinator_h
 #define WebMemoryCoordinator_h
 
 #include "public/platform/WebCommon.h"
 #include "public/platform/WebMemoryPressureLevel.h"
 
 namespace blink {
 
+enum class WebMemoryAllocationMode {
+    Normal,
+    Throttled,
+};
+
 class WebMemoryCoordinator {
 public:
     // Called when a memory pressure notification is received.
     BLINK_EXPORT static void onMemoryPressure(WebMemoryPressureLevel);
+
+    // Called when the system wants to throttle/unthrottle memory allocation.
+    BLINK_EXPORT static void setAllocationMode(WebMemoryAllocationMode);

[haraken, 2016/06/27 02:17:07]

Would it make more sense to introduce onMemoryStateChanged() API instead of
setAllocationMode? I want the Blink API to be more consistent with the
Chromium-side memory-coordinator API.

 };
 
 } // namespace blink
 
 #endif