[RemotePlayback] No monitoring on low-end devices

third_party/WebKit/Source/modules/remoteplayback/RemotePlayback.cpp

Index: third_party/WebKit/Source/modules/remoteplayback/RemotePlayback.cpp
diff --git a/third_party/WebKit/Source/modules/remoteplayback/RemotePlayback.cpp b/third_party/WebKit/Source/modules/remoteplayback/RemotePlayback.cpp
index 7d1002114110eebb8703b1881be1284ac00ea58e..95db13e012064578e1867c8c0e97e24d9a007020 100644
--- a/third_party/WebKit/Source/modules/remoteplayback/RemotePlayback.cpp
+++ b/third_party/WebKit/Source/modules/remoteplayback/RemotePlayback.cpp
@@ -13,6 +13,7 @@
 #include "core/events/Event.h"
 #include "core/html/HTMLMediaElement.h"
 #include "modules/EventTargetModules.h"
+#include "platform/MemoryCoordinator.h"
 #include "platform/UserGestureIndicator.h"
 
 namespace blink {
@@ -73,8 +74,13 @@ ScriptPromise RemotePlayback::watchAvailability(
     return promise;
   }
 
-  // TODO(avayvod): implement steps 4 and 5 of the algorithm.
-  // https://crbug.com/655233
+  if (MemoryCoordinator::isLowEndDevice()) {
+    resolver->reject(DOMException::create(
+        NotSupportedError,
+        "Availability monitoring is not supported on this device."));
+    return promise;
+  }
+
   int id;
   do {
     id = getExecutionContext()->circularSequentialID();