Net: Standardize HttpByteRange printing

content/renderer/media/buffered_resource_loader.cc

Index: content/renderer/media/buffered_resource_loader.cc
diff --git a/content/renderer/media/buffered_resource_loader.cc b/content/renderer/media/buffered_resource_loader.cc
index 5429c3268e1ed64bf2417d28617dcf082d5fb669..91528d07dfb1f0d8d0e1c1651a38a664878c4bd9 100644
--- a/content/renderer/media/buffered_resource_loader.cc
+++ b/content/renderer/media/buffered_resource_loader.cc
@@ -13,6 +13,7 @@
 #include "base/strings/stringprintf.h"
 #include "content/renderer/media/cache_util.h"
 #include "media/base/media_log.h"
+#include "net/http/http_byte_range.h"
 #include "net/http/http_request_headers.h"
 #include "third_party/WebKit/public/platform/WebString.h"
 #include "third_party/WebKit/public/platform/WebURLError.h"
@@ -165,8 +166,8 @@ void BufferedResourceLoader::Start(
   if (IsRangeRequest()) {
     request.setHTTPHeaderField(
         WebString::fromUTF8(net::HttpRequestHeaders::kRange),
-        WebString::fromUTF8(GenerateHeaders(first_byte_position_,
-                                            last_byte_position_)));
+        WebString::fromUTF8(net::HttpByteRange::Bounded(
+            first_byte_position_, last_byte_position_).PrintHeader()));
   }
 
   frame->setReferrerForRequest(request, blink::WebURL());
@@ -750,27 +751,6 @@ bool BufferedResourceLoader::VerifyPartialResponse(
   return true;
 }
 
-std::string BufferedResourceLoader::GenerateHeaders(
-    int64 first_byte_position,
-    int64 last_byte_position) {
-  // Construct the value for the range header.
-  std::string header;
-  if (first_byte_position > kPositionNotSpecified &&
-      last_byte_position > kPositionNotSpecified) {
-    if (first_byte_position <= last_byte_position) {
-      header = base::StringPrintf("bytes=%" PRId64 "-%" PRId64,
-                                  first_byte_position,
-                                  last_byte_position);
-    }
-  } else if (first_byte_position > kPositionNotSpecified) {
-    header = base::StringPrintf("bytes=%" PRId64 "-",
-                                first_byte_position);
-  } else if (last_byte_position > kPositionNotSpecified) {
-    NOTIMPLEMENTED() << "Suffix range not implemented";
-  }
-  return header;
-}
-
 void BufferedResourceLoader::DoneRead(Status status, int bytes_read) {
   if (saved_forward_capacity_) {
     buffer_.set_forward_capacity(saved_forward_capacity_);