Make URLRequestContext a MemoryDumpProvider (Abandoned)

net/filter/filter_source_stream_unittest.cc

Index: net/filter/filter_source_stream_unittest.cc
diff --git a/net/filter/filter_source_stream_unittest.cc b/net/filter/filter_source_stream_unittest.cc
index 70a6d12a19d70ebed9759697aa8aae7457baf4b5..31f63aae90993aa581c12cee655b6815b809d5a5 100644
--- a/net/filter/filter_source_stream_unittest.cc
+++ b/net/filter/filter_source_stream_unittest.cc
@@ -29,6 +29,8 @@ class TestFilterSourceStreamBase : public FilterSourceStream {
       : FilterSourceStream(SourceStream::TYPE_NONE, std::move(upstream)) {}
   ~TestFilterSourceStreamBase() override { DCHECK(buffer_.empty()); }
   std::string GetTypeAsString() const override { return type_string_; }
+  void DumpMemoryStatsImpl(
+      base::trace_event::MemoryAllocatorDump* dump) const override {}
 
   void set_type_string(const std::string& type_string) {
     type_string_ = type_string;
@@ -206,6 +208,8 @@ class ErrorFilterSourceStream : public FilterSourceStream {
     return ERR_CONTENT_DECODING_FAILED;
   }
   std::string GetTypeAsString() const override { return ""; }
+  void DumpMemoryStatsImpl(
+      base::trace_event::MemoryAllocatorDump* dump) const override {}
 
  private:
   DISALLOW_COPY_AND_ASSIGN(ErrorFilterSourceStream);