Speculative fix when translating blob data to a file path

media/base/android/media_player_bridge.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "media/base/android/media_player_bridge.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
 #include "base/basictypes.h"
 #include "base/logging.h"
@@ skipping 245 matching lines @@
   if (!username.empty()) {
     replacements.SetUsernameStr(username);
     if (!password.empty())
       replacements.SetPasswordStr(password);
     url_ = url_.ReplaceComponents(replacements);
   }
   ExtractMediaMetadata(url_.spec());
 }
 
 void MediaPlayerBridge::ExtractMediaMetadata(const std::string& url) {
+  if (url.empty()) {
+    OnMediaError(MEDIA_ERROR_FORMAT);
+    return;
+  }
+
   int fd;
   int64 offset;
   int64 size;
   if (InterceptMediaUrl(url, &fd, &offset, &size)) {
     manager()->GetMediaResourceGetter()->ExtractMediaMetadata(
         fd, offset, size,
         base::Bind(&MediaPlayerBridge::OnMediaMetadataExtracted,
                    weak_factory_.GetWeakPtr()));
   } else {
     manager()->GetMediaResourceGetter()->ExtractMediaMetadata(
@@ skipping 263 matching lines @@
 
 GURL MediaPlayerBridge::GetFirstPartyForCookies() {
   return first_party_for_cookies_;
 }
 
 bool MediaPlayerBridge::IsSurfaceInUse() const {
   return is_surface_in_use_;
 }
 
 }  // namespace media