Migrate WebRequestRedirectByRegExAction to use RE2 and roll RE2 to revision 97:401ab4168e8e

chrome/browser/extensions/api/declarative_webrequest/webrequest_action.h

 // Copyright (c) 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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_API_DECLARATIVE_WEBREQUEST_WEBREQUEST_ACTION_H_
 #define CHROME_BROWSER_EXTENSIONS_API_DECLARATIVE_WEBREQUEST_WEBREQUEST_ACTION_H_
 
 #include <list>
 #include <string>
 #include <vector>
 
 #include "base/compiler_specific.h"
 #include "base/memory/linked_ptr.h"
 #include "chrome/browser/extensions/api/declarative_webrequest/request_stage.h"
 #include "chrome/browser/extensions/api/declarative_webrequest/webrequest_rule.h"
 #include "chrome/browser/extensions/api/web_request/web_request_api_helpers.h"
 #include "chrome/common/extensions/api/events.h"
 #include "googleurl/src/gurl.h"
-#include "unicode/regex.h"
 
 class WebRequestPermission;
 
 namespace base {
 class DictionaryValue;
 class Time;
 class Value;
 }
 
 namespace extension_web_request_api_helpers {
 struct EventResponseDelta;
 }
 
 namespace extensions {
 class Extension;
 }
 
 namespace net {
 class URLRequest;
 }
 
+namespace re2 {
+class RE2;
+}
+
 namespace extensions {
 
 typedef linked_ptr<extension_web_request_api_helpers::EventResponseDelta>
     LinkedPtrEventResponseDelta;
 
 // Base class for all WebRequestActions of the declarative Web Request API.
 class WebRequestAction {
  public:
   // Type identifiers for concrete WebRequestActions.
   enum Type {
@@ skipping 178 matching lines @@
       const std::string& extension_id,
       const base::Time& extension_install_time) const OVERRIDE;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(WebRequestRedirectToEmptyDocumentAction);
 };
 
 // Action that instructs to redirect a network request.
 class WebRequestRedirectByRegExAction : public WebRequestAction {
  public:
-  // The |to_pattern| has to be passed in ICU syntax.
-  // TODO(battre): Change this to Perl style when migrated to RE2.
-  explicit WebRequestRedirectByRegExAction(
-      scoped_ptr<icu::RegexPattern> from_pattern,
-      const std::string& to_pattern);
+  // The |to_pattern| has to be passed in RE2 syntax with the exception that
+  // capture groups are referenced in Perl style ($1, $2, ...).
+  explicit WebRequestRedirectByRegExAction(scoped_ptr<re2::RE2> from_pattern,
+                                           const std::string& to_pattern);
   virtual ~WebRequestRedirectByRegExAction();
 
   // Conversion of capture group styles between Perl style ($1, $2, ...) and
   // RE2 (\1, \2, ...).
   static std::string PerlToRe2Style(const std::string& perl);
 
   // Implementation of WebRequestAction:
   virtual int GetStages() const OVERRIDE;
   virtual Type GetType() const OVERRIDE;
   virtual LinkedPtrEventResponseDelta CreateDelta(
       const WebRequestRule::RequestData& request_data,
       const std::string& extension_id,
       const base::Time& extension_install_time) const OVERRIDE;
 
  private:
-  scoped_ptr<icu::RegexPattern> from_pattern_;
-  icu::UnicodeString to_pattern_;
+  scoped_ptr<re2::RE2> from_pattern_;
+  std::string to_pattern_;
 
   DISALLOW_COPY_AND_ASSIGN(WebRequestRedirectByRegExAction);
 };
 
 // Action that instructs to set a request header.
 class WebRequestSetRequestHeaderAction : public WebRequestAction {
  public:
   WebRequestSetRequestHeaderAction(const std::string& name,
                                    const std::string& value);
   virtual ~WebRequestSetRequestHeaderAction();
@@ skipping 138 matching lines @@
       const base::Time& extension_install_time) const OVERRIDE;
 
  private:
   linked_ptr<ResponseCookieModification> response_cookie_modification_;
   DISALLOW_COPY_AND_ASSIGN(WebRequestResponseCookieAction);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_DECLARATIVE_WEBREQUEST_WEBREQUEST_ACTION_H_