Revert "Ship the Credential Management API by default" from M50.

content/browser/renderer_host/render_process_host_impl.cc

 // Copyright 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.
 
 // Represents the browser side of the browser <--> renderer communication
 // channel. There will be one RenderProcessHost per renderer process.
 
 #include "content/browser/renderer_host/render_process_host_impl.h"
 
 #include <algorithm>
@@ skipping 1419 matching lines @@
     switches::kDisableSpeechAPI,
     switches::kDisableThreadedCompositing,
     switches::kDisableThreadedScrolling,
     switches::kDisableTouchAdjustment,
     switches::kDisableTouchDragDrop,
     switches::kDisableV8IdleTasks,
     switches::kDisableWheelGestures,
     switches::kDomAutomationController,
     switches::kEnableBlinkFeatures,
     switches::kEnableBrowserSideNavigation,
+    switches::kEnableCredentialManagerAPI,
     switches::kEnableDisplayList2dCanvas,
     switches::kEnableDistanceFieldText,
     switches::kEnableExperimentalCanvasFeatures,
     switches::kEnableExperimentalWebPlatformFeatures,
     switches::kEnableHeapProfiling,
     switches::kEnableGPUClientLogging,
     switches::kEnableGpuClientTracing,
     switches::kEnableGpuMemoryBufferVideoFrames,
     switches::kEnableGPUServiceLogging,
     switches::kEnableIconNtp,
@@ skipping 1366 matching lines @@
 
     // Skip widgets in other processes.
     if (rvh->GetProcess()->GetID() != GetID())
       continue;
 
     rvh->OnWebkitPreferencesChanged();
   }
 }
 
 }  // namespace content