Do V8 GC ASAP if system memory is pressured

net/sdch/sdch_owner.h

 // Copyright 2014 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 NET_SDCH_SDCH_OWNER_H_
 #define NET_SDCH_SDCH_OWNER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 206 matching lines @@
   net::SdchManager* manager_;
   scoped_ptr<net::SdchDictionaryFetcher> fetcher_;
 
   size_t total_dictionary_bytes_;
 
   scoped_ptr<base::Clock> clock_;
 
   size_t max_total_dictionary_size_;
   size_t min_space_for_dictionary_fetch_;
 
-  base::MemoryPressureListener memory_pressure_listener_;
+  base::MemoryPressureListener* memory_pressure_listener_;
 
   // Dictionary persistence machinery.
   // * |in_memory_pref_store_| is created on construction and used in the
   //   absence of any call to EnablePersistentStorage().
   // * |external_pref_store_| holds the preference store specified by
   //   EnablePersistentStorage() (if any).
   // * The external pref store is initialized asynchronously. During this time,
   //   both pointers will be value, pref_store_ will point to the in-memory
   //   one, and this class will be observing the initialization of the external
   //   store.
@@ skipping 23 matching lines @@
   // Creation time for this SdchOwner object, used for reporting temporal memory
   // pressure.
   base::Time creation_time_;
 
   DISALLOW_COPY_AND_ASSIGN(SdchOwner);
 };
 
 }  // namespace net
 
 #endif  // NET_SDCH_SDCH_OWNER_H_