Add MemoryCoordinatorClient

third_party/WebKit/Source/core/fetch/MemoryCache.h

Index: third_party/WebKit/Source/core/fetch/MemoryCache.h
diff --git a/third_party/WebKit/Source/core/fetch/MemoryCache.h b/third_party/WebKit/Source/core/fetch/MemoryCache.h
index a2522aa856b467c2fe2e92c152a66ca3140c09aa..8e562bda8c5adc7198450fa7a02858b3c9bd268f 100644
--- a/third_party/WebKit/Source/core/fetch/MemoryCache.h
+++ b/third_party/WebKit/Source/core/fetch/MemoryCache.h
@@ -28,6 +28,7 @@
 #include "core/CoreExport.h"
 #include "core/fetch/Resource.h"
 #include "platform/MemoryCacheDumpProvider.h"
+#include "platform/MemoryCoordinator.h"
 #include "public/platform/WebThread.h"
 #include "wtf/Allocator.h"
 #include "wtf/HashMap.h"
@@ -122,7 +123,7 @@ WTF_ALLOW_MOVE_INIT_AND_COMPARE_WITH_MEM_FUNCTIONS(blink::MemoryCacheLRUList);
 
 namespace blink {
 
-class CORE_EXPORT MemoryCache final : public GarbageCollectedFinalized<MemoryCache>, public WebThread::TaskObserver, public MemoryCacheDumpClient {
+class CORE_EXPORT MemoryCache final : public GarbageCollectedFinalized<MemoryCache>, public WebThread::TaskObserver, public MemoryCacheDumpClient, public MemoryCoordinatorClient {
     USING_GARBAGE_COLLECTED_MIXIN(MemoryCache);
     WTF_MAKE_NONCOPYABLE(MemoryCache);
 public:
@@ -220,6 +221,8 @@ public:
     // Take memory usage snapshot for tracing.
     bool onMemoryDump(WebMemoryDumpLevelOfDetail, WebProcessMemoryDump*) override;
 
+    void onMemoryPressure(WebMemoryPressureLevel) override;
+
     bool isInSameLRUListForTest(const Resource*, const Resource*);
 private:
     enum PruneStrategy {