net: Give more descriptive names for code around the request merging logic.

net/http/http_stream_parser.h

Index: net/http/http_stream_parser.h
diff --git a/net/http/http_stream_parser.h b/net/http/http_stream_parser.h
index b87beab733300dc51af56238cc2a845d17353b6f..303bc108f3a6319607e7176aefd25c692a9870f7 100644
--- a/net/http/http_stream_parser.h
+++ b/net/http/http_stream_parser.h
@@ -91,10 +91,11 @@ class NET_EXPORT_PRIVATE HttpStreamParser  : public ChunkCallback {
                          char* output,
                          size_t output_size);
 
-  // Returns true if request and body should be merged (i.e. the sum is
-  // small enough and the body is in memory, and not chunked).
-  static bool ShouldMerge(const std::string& request,
-                          const UploadDataStream* request_body);
+  // Returns true if request headers and body should be merged (i.e. the
+  // sum is small enough and the body is in memory, and not chunked).
+  static bool ShouldMergeRequestHeadersAndBody(
+      const std::string& request_headers,
+      const UploadDataStream* request_body);
 
   // The number of extra bytes required to encode a chunk.
   static const size_t kChunkHeaderFooterSize;