Initialize |bytes_so_far| local variable in SaveFileManager::SaveFinished.

content/browser/download/save_file_manager.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 "build/build_config.h"
 
 #include "content/browser/download/save_file_manager.h"
 
 #include "base/bind.h"
 #include "base/files/file_util.h"
@@ skipping 188 matching lines @@
 // fetching data. We forward the message to OnSaveFinished in UI thread.
 void SaveFileManager::SaveFinished(SaveItemId save_item_id,
                                    SavePackageId save_package_id,
                                    bool is_success) {
   DVLOG(20) << " " << __FUNCTION__ << "()"
             << " save_item_id = " << save_item_id
             << " save_package_id = " << save_package_id
             << " is_success = " << is_success;
   DCHECK_CURRENTLY_ON(BrowserThread::FILE);
 
-  int64_t bytes_so_far;
+  int64_t bytes_so_far = 0;
   SaveFile* save_file = LookupSaveFile(save_item_id);
   if (save_file != nullptr) {
     DCHECK(save_file->InProgress());
     DVLOG(20) << " " << __FUNCTION__ << "()"
               << " save_file = " << save_file->DebugString();
     bytes_so_far = save_file->BytesSoFar();
     save_file->Finish();
     save_file->Detach();
   } else {
     // We got called before StartSave - this should only happen if
     // ResourceHandler failed before it got a chance to parse headers
     // and metadata.
     DCHECK(!is_success);
-
-    bytes_so_far = 0;
   }
 
   BrowserThread::PostTask(
       BrowserThread::UI, FROM_HERE,
       base::Bind(&SaveFileManager::OnSaveFinished, this, save_item_id,
                  bytes_so_far, is_success));
 }
 
 // Notifications sent from the file thread and run on the UI thread.
 
@@ skipping 186 matching lines @@
       SaveFile* save_file = it->second;
       DCHECK(!save_file->InProgress());
       base::DeleteFile(save_file->FullPath(), false);
       delete save_file;
       save_file_map_.erase(it);
     }
   }
 }
 
 }  // namespace content