Place <webview> tag behind a flag.

chrome/browser/chrome_content_browser_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/browser/chrome_content_browser_client.h"
 
 #include <set>
 #include <utility>
 #include <vector>
 
@@ skipping 906 matching lines @@
       switches::kEnableBundledPpapiFlash,
       switches::kEnableCrxlessWebApps,
       switches::kEnableExperimentalExtensionApis,
       switches::kEnableFramelessConstrainedDialogs,
       switches::kEnableIPCFuzzing,
       switches::kEnableNaCl,
       switches::kEnableNaClIPCProxy,
       switches::kEnablePasswordGeneration,
       switches::kEnablePnacl,
       switches::kEnableWatchdog,
+      switches::kEnableWebView,
       switches::kMemoryProfiling,
       switches::kMessageLoopHistogrammer,
       switches::kNoJsRandomness,
       switches::kPerformCrashAnalysis,
       switches::kPlaybackMode,
       switches::kPpapiFlashArgs,
       switches::kPpapiFlashInProcess,
       switches::kPpapiFlashPath,
       switches::kPpapiFlashVersion,
       switches::kProfilingAtStart,
@@ skipping 940 matching lines @@
     partition_id = extension->id();
   }
 
   // Enforce that IsValidStoragePartitionId() implementation stays in sync.
   DCHECK(IsValidStoragePartitionId(browser_context, partition_id));
   return partition_id;
 }
 
 
 }  // namespace chrome