Sort SPDY flags alphabetically and move to net namespace.

net/spdy/spdy_flags.cc

Index: net/spdy/spdy_flags.cc
diff --git a/net/spdy/spdy_flags.cc b/net/spdy/spdy_flags.cc
index e9415bce79abf96d95380d3eee9c96dd5e50f38c..ad4a2b1fc08ed0fc3e3f337677d64b0d85e7f3f3 100644
--- a/net/spdy/spdy_flags.cc
+++ b/net/spdy/spdy_flags.cc
@@ -4,8 +4,7 @@
 
 #include "net/spdy/spdy_flags.h"
 
-// Use NestedSpdyFramerDecoder.
-bool FLAGS_use_nested_spdy_framer_decoder = false;
+namespace net {
 
 // If true, SpdyFramer uses the new visitor methods OnHeaderFrameStart and
 // OnHeaderFrameEnd.  Fourth attempt.
@@ -13,3 +12,8 @@ bool FLAGS_chromium_http2_flag_spdy_framer_use_new_methods4 = true;
 
 // Use SpdyHeaderBlock::AppendValueOrAddHeader when adding to headers.
 bool FLAGS_chromium_http2_flag_use_new_spdy_header_block_header_joining = true;
+
+// Use NestedSpdyFramerDecoder.
+bool FLAGS_use_nested_spdy_framer_decoder = false;
+
+}  // namespace net