Remove renderer notifications of memory pressure.

content/child/child_thread_impl.cc

Index: content/child/child_thread_impl.cc
diff --git a/content/child/child_thread_impl.cc b/content/child/child_thread_impl.cc
index 7bb4984c7fd97495fae065fdebaf7969df9fdd6a..1db040bdbb43be7335877f0cb970c0f88432bc80 100644
--- a/content/child/child_thread_impl.cc
+++ b/content/child/child_thread_impl.cc
@@ -40,7 +40,6 @@
 #include "content/child/child_resource_message_filter.h"
 #include "content/child/fileapi/file_system_dispatcher.h"
 #include "content/child/fileapi/webfilesystem_impl.h"
-#include "content/child/memory/child_memory_message_filter.h"
 #include "content/child/notifications/notification_dispatcher.h"
 #include "content/child/quota_dispatcher.h"
 #include "content/child/quota_message_filter.h"
@@ -495,7 +494,6 @@ void ChildThreadImpl::Init(const Options& options) {
     // whole process including renderers.
     channel_->AddFilter(new tracing::ChildTraceMessageFilter(
         ChildProcess::current()->io_task_runner()));
-    channel_->AddFilter(new ChildMemoryMessageFilter());
 
     if (service_manager_connection_) {
       memory_instrumentation::ProcessLocalDumpManagerImpl::Config config(