Enable noexcept on Windows, use for a few move constructors.

url/gurl.h

 // 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.
 
 #ifndef URL_GURL_H_
 #define URL_GURL_H_
 
 #include <stddef.h>
 
 #include <iosfwd>
@@ skipping 36 matching lines @@
  public:
   typedef url::StringPieceReplacements<std::string> Replacements;
   typedef url::StringPieceReplacements<base::string16> ReplacementsW;
 
   // Creates an empty, invalid URL.
   GURL();
 
   // Copy construction is relatively inexpensive, with most of the time going
   // to reallocating the string. It does not re-parse.
   GURL(const GURL& other);
-  GURL(GURL&& other);
+  GURL(GURL&& other) noexcept;
 
   // The strings to this contructor should be UTF-8 / UTF-16.
   explicit GURL(base::StringPiece url_string);
   explicit GURL(base::StringPiece16 url_string);
 
   // Constructor for URLs that have already been parsed and canonicalized. This
   // is used for conversions from KURL, for example. The caller must supply all
   // information associated with the URL, which must be correct and consistent.
   GURL(const char* canonical_spec,
        size_t canonical_spec_len,
@@ skipping 399 matching lines @@
 URL_EXPORT bool operator==(const GURL& x, const GURL& y);
 URL_EXPORT bool operator!=(const GURL& x, const GURL& y);
 
 // Equality operator for comparing raw spec_. This should be used in place of
 // url == GURL(spec) where |spec| is known (i.e. constants). This is to prevent
 // needlessly re-parsing |spec| into a temporary GURL.
 URL_EXPORT bool operator==(const GURL& x, const base::StringPiece& spec);
 URL_EXPORT bool operator!=(const GURL& x, const base::StringPiece& spec);
 
 #endif  // URL_GURL_H_