Support sending a sliced file in chromium....

chrome/renderer/renderer_webkitclient_impl.cc

 // Copyright (c) 2010 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/renderer/renderer_webkitclient_impl.h"
 
 #if defined(USE_SYSTEM_SQLITE)
 #include <sqlite3.h>
 #else
 #include "third_party/sqlite/preprocessed/sqlite3.h"
@@ skipping 80 matching lines @@
   if (RenderThread::current()->Send(
           new ViewHostMsg_GetFileSize(webkit_glue::WebStringToFilePath(path),
                                       reinterpret_cast<int64*>(&result)))) {
     return result >= 0;
   }
 
   result = -1;
   return false;
 }
 
+bool RendererWebKitClientImpl::getFileModificationTime(
+    const WebKit::WebString& path,
+    double& result) {
+  base::Time time;
+  if (RenderThread::current()->Send(
+          new ViewHostMsg_GetFileModificationTime(
+              webkit_glue::WebStringToFilePath(path), &time))) {
+    result = time.ToDoubleT();
+    return true;
+  }
+
+  result = 0;
+  return false;
+}
+
 unsigned long long RendererWebKitClientImpl::visitedLinkHash(
     const char* canonical_url,
     size_t length) {
   return RenderThread::current()->visited_link_slave()->ComputeURLFingerprint(
       canonical_url, length);
 }
 
 bool RendererWebKitClientImpl::isLinkVisited(unsigned long long link_hash) {
   return RenderThread::current()->visited_link_slave()->IsVisited(link_hash);
 }
@@ skipping 220 matching lines @@
     const WebKit::WebString& challenge,
     const WebKit::WebURL& url) {
   std::string signed_public_key;
   RenderThread::current()->Send(new ViewHostMsg_Keygen(
       static_cast<uint32>(key_size_index),
       challenge.utf8(),
       GURL(url),
       &signed_public_key));
   return WebString::fromUTF8(signed_public_key);
 }