Restore SnapshotTabHelper temporarily

chrome/common/chrome_content_client.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 "chrome/common/chrome_content_client.h"
 
 #include "base/command_line.h"
 #include "base/cpu.h"
 #include "base/file_util.h"
 #include "base/path_service.h"
@@ skipping 381 matching lines @@
 #if defined(OS_CHROMEOS)
   standard_schemes->push_back(kCrosScheme);
 #endif
 }
 
 bool ChromeContentClient::CanHandleWhileSwappedOut(
     const IPC::Message& msg) {
   // Any Chrome-specific messages (apart from those listed in
   // CanSendWhileSwappedOut) that must be handled by the browser when sent from
   // swapped out renderers.
+  switch (msg.type()) {
+    case ChromeViewHostMsg_Snapshot::ID:
+      return true;
+    default:
+      break;
+  }
   return false;
 }
 
 std::string ChromeContentClient::GetProduct() const {
   chrome::VersionInfo version_info;
   std::string product("Chrome/");
   product += version_info.is_valid() ? version_info.Version() : "0.0.0.0";
   return product;
 }
 
@@ skipping 52 matching lines @@
   }
   return false;
 }
 
 std::string ChromeContentClient::GetCarbonInterposePath() const {
   return std::string(kInterposeLibraryPath);
 }
 #endif
 
 }  // namespace chrome