Update a bunch of files to the new location of browser_thread.h

chrome/browser/download/base_file.cc

 // Copyright (c) 2011 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 "chrome/browser/download/base_file.h"
 
 #include "base/crypto/secure_hash.h"
 #include "base/file_util.h"
 #include "base/logging.h"
 #include "base/stringprintf.h"
 #include "net/base/file_stream.h"
 #include "net/base/net_errors.h"
-#include "chrome/browser/browser_thread.h"
 #include "chrome/browser/download/download_util.h"
+#include "content/browser/browser_thread.h"
 
 #if defined(OS_WIN)
 #include "chrome/common/win_safe_util.h"
 #elif defined(OS_MACOSX)
 #include "chrome/browser/ui/cocoa/file_metadata.h"
 #endif
 
 BaseFile::BaseFile(const FilePath& full_path,
                    const GURL& source_url,
                    const GURL& referrer_url,
@@ skipping 191 matching lines @@
     file_stream_->Close();
     file_stream_.reset();
   }
 }
 
 std::string BaseFile::DebugString() const {
   return base::StringPrintf("{ source_url_ = \"%s\" full_path_ = \"%s\" }",
                             source_url_.spec().c_str(),
                             full_path_.value().c_str());
 }