Use int64 instead of int32 for response sizes.

net/url_request/url_request_job.h

Index: net/url_request/url_request_job.h
diff --git a/net/url_request/url_request_job.h b/net/url_request/url_request_job.h
index 399f156ac5cc4af6c5f1b7c84274237c5f377925..a105d79907532487a15eddabe04be24ab253237b 100644
--- a/net/url_request/url_request_job.h
+++ b/net/url_request/url_request_job.h
@@ -340,10 +340,10 @@ class NET_EXPORT URLRequestJob
   void SetProxyServer(const HostPortPair& proxy_server);
 
   // The number of bytes read before passing to the filter.
-  int prefilter_bytes_read() const { return prefilter_bytes_read_; }
+  int64 prefilter_bytes_read() const { return prefilter_bytes_read_; }
 
   // The number of bytes read after passing through the filter.
-  int postfilter_bytes_read() const { return postfilter_bytes_read_; }
+  int64 postfilter_bytes_read() const { return postfilter_bytes_read_; }
 
   // Total number of bytes read from network (or cache) and typically handed
   // to filter to process.  Used to histogram compression ratios, and error
@@ -396,8 +396,8 @@ class NET_EXPORT URLRequestJob
   // NotifyDone so that it is kept in sync with the request.
   bool done_;
 
-  int prefilter_bytes_read_;
-  int postfilter_bytes_read_;
+  int64 prefilter_bytes_read_;
+  int64 postfilter_bytes_read_;
   int64 filter_input_byte_count_;

[mmenke, 2015/04/10 20:43:50]

Erm...wait...filter_input_byte_count_ and prefilter_bytes_read_ look to be
identical now.  We should get rid of one or the other.

[sclittle, 2015/04/10 20:59:13]

Looks like you're right; I want to merge this CL into M43 though, so removing
that redundancy seems outside the scope of this CL.

 
   // The data stream filter which is enabled on demand.