Add new user script injection point "document_idle" and make it the default.

Semantically, document-idle means "when the DOM is ready and layout has been idle for awhile", or more loosely, "as soon as we get around to it".

Right now this uses a simple heuristic. It injects scripts 200ms after DOMContentLoaded, or immediately after onload, whichever happens first.

BUG=26126
TEST=Manual. Extensions with content scripts should work.

Review URL: http://codereview.chromium.org/339064

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@30784 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 11 insertions, 1 deletions

diff --git a/chrome/renderer/navigation_state.h b/chrome/renderer/navigation_state.h
index 46031dd..394aee9 100644
--- a/chrome/renderer/navigation_state.h
+++ b/chrome/renderer/navigation_state.h
@@ -8,6 +8,7 @@
 #include "base/scoped_ptr.h"
 #include "base/time.h"
 #include "chrome/common/page_transition_types.h"
+#include "chrome/renderer/user_script_idle_scheduler.h"
 #include "webkit/api/public/WebDataSource.h"
 #include "webkit/glue/alt_error_page_resource_fetcher.h"
 #include "webkit/glue/password_form.h"
@@ -33,6 +34,13 @@ class NavigationState : public WebKit::WebDataSource::ExtraData {
     return static_cast<NavigationState*>(ds->extraData());
   }
 
+  UserScriptIdleScheduler* user_script_idle_scheduler() {
+    return user_script_idle_scheduler_.get();
+  }
+  void set_user_script_idle_scheduler(UserScriptIdleScheduler* scheduler) {
+    user_script_idle_scheduler_.reset(scheduler);
+  }
+
   // Contains the page_id for this navigation or -1 if there is none yet.
   int32 pending_page_id() const { return pending_page_id_; }
 
@@ -173,7 +181,8 @@ class NavigationState : public WebKit::WebDataSource::ExtraData {
         request_committed_(false),
         is_content_initiated_(is_content_initiated),
         pending_page_id_(pending_page_id),
-        postpone_loading_data_(false) {
+        postpone_loading_data_(false),
+        user_script_idle_scheduler_(NULL) {
   }
 
   PageTransition::Type transition_type_;
@@ -195,6 +204,7 @@ class NavigationState : public WebKit::WebDataSource::ExtraData {
   std::string security_info_;
   bool postpone_loading_data_;
   std::string postponed_data_;
+  scoped_ptr<UserScriptIdleScheduler> user_script_idle_scheduler_;
 
   DISALLOW_COPY_AND_ASSIGN(NavigationState);
 };