Add base::HostToNetXX() & NetToHostXX(), and use them to replace htonX() & ntohX() in Chrome.

net/spdy/spdy_frame_builder.h

Index: net/spdy/spdy_frame_builder.h
diff --git a/net/spdy/spdy_frame_builder.h b/net/spdy/spdy_frame_builder.h
index db5926d6408d971706edb3ddfdd56d0513a1487c..79d1c0e7cc06d1d6d9b3a532c5f47fdf2b8e31cc 100644
--- a/net/spdy/spdy_frame_builder.h
+++ b/net/spdy/spdy_frame_builder.h
@@ -49,11 +49,11 @@ class NET_EXPORT_PRIVATE SpdyFrameBuilder {
   // of the SpdyFrameBuilder payload. Note - binary integers are converted from
   // host to network form.
   bool WriteUInt16(uint16 value) {
-    value = htons(value);
+    value = base::HostToNet16(value);
     return WriteBytes(&value, sizeof(value));
   }
   bool WriteUInt32(uint32 value) {
-    value = htonl(value);
+    value = base::HostToNet32(value);
     return WriteBytes(&value, sizeof(value));
   }
   // TODO(hkhalil) Rename to WriteStringPiece16().
@@ -63,7 +63,7 @@ class NET_EXPORT_PRIVATE SpdyFrameBuilder {
 
   // Write an integer to a particular offset in the data buffer.
   bool WriteUInt32ToOffset(int offset, uint32 value) {
-    value = htonl(value);
+    value = base::HostToNet32(value);
     return WriteBytesToOffset(offset, &value, sizeof(value));
   }