Remove CHECK from createChildFrame

content/renderer/render_frame_impl.cc

 // Copyright 2013 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 "content/renderer/render_frame_impl.h"
 
 #include <map>
 #include <string>
 
 #include "base/auto_reset.h"
@@ skipping 2014 matching lines @@
   }
 }
 
 blink::WebFrame* RenderFrameImpl::createChildFrame(
     blink::WebLocalFrame* parent,
     const blink::WebString& name,
     blink::WebSandboxFlags sandbox_flags) {
   // Synchronously notify the browser of a child frame creation to get the
   // routing_id for the RenderFrame.
   int child_routing_id = MSG_ROUTING_NONE;
-  CHECK(Send(new FrameHostMsg_CreateChildFrame(
-      routing_id_,
-      base::UTF16ToUTF8(name),
-      WebToContentSandboxFlags(sandbox_flags),
-      &child_routing_id)));
+  Send(new FrameHostMsg_CreateChildFrame(
+      routing_id_, base::UTF16ToUTF8(name),
+      WebToContentSandboxFlags(sandbox_flags), &child_routing_id));
 
   // Allocation of routing id failed, so we can't create a child frame. This can
   // happen if this RenderFrameImpl's IPCs are being filtered when in swapped
   // out state or synchronous IPC message above has failed.
   if (child_routing_id == MSG_ROUTING_NONE) {
     NOTREACHED() << "Failed to allocate routing id for child frame.";
     return nullptr;
   }
 
   // Create the RenderFrame and WebLocalFrame, linking the two.
@@ skipping 2394 matching lines @@
 
 #if defined(ENABLE_BROWSER_CDMS)
 RendererCdmManager* RenderFrameImpl::GetCdmManager() {
   if (!cdm_manager_)
     cdm_manager_ = new RendererCdmManager(this);
   return cdm_manager_;
 }
 #endif  // defined(ENABLE_BROWSER_CDMS)
 
 }  // namespace content