IWYU fixes for url/...

url/url_canon_icu.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.
 
 // ICU integration functions.
 
+#include <stdbool.h>
 #include <stdint.h>
 #include <stdlib.h>
 #include <string.h>
+#include <ostream>
 
 #include "base/lazy_instance.h"
 #include "base/logging.h"
 #include "third_party/icu/source/common/unicode/ucnv.h"
 #include "third_party/icu/source/common/unicode/ucnv_cb.h"
 #include "third_party/icu/source/common/unicode/uidna.h"
+#include "unicode/umachine.h"
+#include "unicode/urename.h"
+#include "unicode/utypes.h"

[Łukasz Anforowicz, 2016/01/07 00:16:17]

Ooops - these should be relative to Chromium root (i.e. we should fully spell
out third_party/icu/source/common/unicode/umachine.h, etc.).  Interestingly -
this is caught by presubmit checks (i.e. no DEPS allows "unicode" as a prefix of
an include).

 #include "url/url_canon_icu.h"
 #include "url/url_canon_internal.h"  // for _itoa_s
 
 namespace url {
 
 namespace {
 
 // Called when converting a character that can not be represented, this will
 // append an escaped version of the numerical character reference for that code
 // point. It is of the form "Ӓ" and we will escape the non-digits to
@@ skipping 155 matching lines @@
     // if necessary.
     if (err != U_BUFFER_OVERFLOW_ERROR || info.errors != 0)
       return false;  // Unknown error, give up.
 
     // Not enough room in our buffer, expand.
     output->Resize(output_length);
   }
 }
 
 }  // namespace url