Support redirectUrl at onHeadersReceived in WebRequest / DWR API

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

Index: chrome/browser/extensions/api/declarative_webrequest/webrequest_action.cc
diff --git a/chrome/browser/extensions/api/declarative_webrequest/webrequest_action.cc b/chrome/browser/extensions/api/declarative_webrequest/webrequest_action.cc
index f95789215d0996bf639bce538a01f58f517047da..acdd2d77d6d13b78a3a6fa0e3c45222c8acf6e10 100644
--- a/chrome/browser/extensions/api/declarative_webrequest/webrequest_action.cc
+++ b/chrome/browser/extensions/api/declarative_webrequest/webrequest_action.cc
@@ -549,7 +549,7 @@ LinkedPtrEventResponseDelta WebRequestCancelAction::CreateDelta(
 //
 
 WebRequestRedirectAction::WebRequestRedirectAction(const GURL& redirect_url)
-    : WebRequestAction(ON_BEFORE_REQUEST,
+    : WebRequestAction(ON_BEFORE_REQUEST | ON_HEADERS_RECEIVED,
                        ACTION_REDIRECT_REQUEST,
                        std::numeric_limits<int>::min(),
                        STRATEGY_DEFAULT),
@@ -586,7 +586,7 @@ LinkedPtrEventResponseDelta WebRequestRedirectAction::CreateDelta(
 
 WebRequestRedirectToTransparentImageAction::
     WebRequestRedirectToTransparentImageAction()
-    : WebRequestAction(ON_BEFORE_REQUEST,
+    : WebRequestAction(ON_BEFORE_REQUEST | ON_HEADERS_RECEIVED,
                        ACTION_REDIRECT_TO_TRANSPARENT_IMAGE,
                        std::numeric_limits<int>::min(),
                        STRATEGY_NONE) {}
@@ -616,7 +616,7 @@ WebRequestRedirectToTransparentImageAction::CreateDelta(
 
 WebRequestRedirectToEmptyDocumentAction::
     WebRequestRedirectToEmptyDocumentAction()
-    : WebRequestAction(ON_BEFORE_REQUEST,
+    : WebRequestAction(ON_BEFORE_REQUEST | ON_HEADERS_RECEIVED,
                        ACTION_REDIRECT_TO_EMPTY_DOCUMENT,
                        std::numeric_limits<int>::min(),
                        STRATEGY_NONE) {}
@@ -647,7 +647,7 @@ WebRequestRedirectToEmptyDocumentAction::CreateDelta(
 WebRequestRedirectByRegExAction::WebRequestRedirectByRegExAction(
     scoped_ptr<RE2> from_pattern,
     const std::string& to_pattern)
-    : WebRequestAction(ON_BEFORE_REQUEST,
+    : WebRequestAction(ON_BEFORE_REQUEST | ON_HEADERS_RECEIVED,
                        ACTION_REDIRECT_BY_REGEX_DOCUMENT,
                        std::numeric_limits<int>::min(),
                        STRATEGY_DEFAULT),