Remove a slightly overzealous CHECK that's causing crashes in canary.

content/child/dwrite_font_proxy/dwrite_font_proxy_win.cc

 // Copyright 2015 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/child/dwrite_font_proxy/dwrite_font_proxy_win.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <utility>
@@ skipping 431 matching lines @@
       CHECK(SUCCEEDED(hr));
       return SUCCEEDED(hr);
     }
   }
 
   DCHECK_LE(family_count, 1u);
 
   if (family_count == 0) {
     // This is really strange, we successfully loaded no fonts?!
     LogLoadFamilyResult(LOAD_FAMILY_ERROR_NO_FAMILIES);
-    CHECK(false);
     return false;
   }
 
   LogLoadFamilyResult(family_count == 1 ? LOAD_FAMILY_SUCCESS_SINGLE_FAMILY
                                         : LOAD_FAMILY_ERROR_MULTIPLE_FAMILIES);
 
   hr = collection->GetFontFamily(0, &family_);
 
   CHECK(SUCCEEDED(hr));
 
@@ skipping 84 matching lines @@
     const base::string16& file_name) {
   data_.Initialize(base::FilePath(file_name));
   if (!data_.IsValid()) {
     CHECK(false);
     return E_FAIL;
   }
   return S_OK;
 }
 
 }  // namespace content