Index: content/browser/frame_host/frame_navigation_entry.h |
diff --git a/content/browser/frame_host/frame_navigation_entry.h b/content/browser/frame_host/frame_navigation_entry.h |
index 6fbd7541730e60ad6fba17ee69c0f7c7e1e869f6..7bc591cb72f9249814af6990560797436714f8f6 100644 |
--- a/content/browser/frame_host/frame_navigation_entry.h |
+++ b/content/browser/frame_host/frame_navigation_entry.h |
@@ -27,10 +27,11 @@ class CONTENT_EXPORT FrameNavigationEntry |
public: |
// TODO(creis): We should not use FTN IDs here, since they will change if you |
// leave a page and come back later. We should evaluate whether Blink's |
- // frame sequence numbers or unique names would work instead, similar to |
- // HistoryNode. |
+ // unique names would work instead, similar to HistoryNode. |
explicit FrameNavigationEntry(int64 frame_tree_node_id); |
FrameNavigationEntry(int64 frame_tree_node_id, |
+ int64 item_sequence_number, |
+ int64 document_sequence_number, |
SiteInstanceImpl* site_instance, |
const GURL& url, |
const Referrer& referrer); |
@@ -40,7 +41,9 @@ class CONTENT_EXPORT FrameNavigationEntry |
FrameNavigationEntry* Clone() const; |
// Updates all the members of this entry. |
- void UpdateEntry(SiteInstanceImpl* site_instance, |
+ void UpdateEntry(int64 item_sequence_number, |
+ int64 document_sequence_number, |
+ SiteInstanceImpl* site_instance, |
const GURL& url, |
const Referrer& referrer, |
const PageState& page_state); |
@@ -51,6 +54,20 @@ class CONTENT_EXPORT FrameNavigationEntry |
// TODO(creis): Replace with frame sequence number or unique name. |
int64 frame_tree_node_id() const { return frame_tree_node_id_; } |
+ // Keeps track of where this entry belongs in the frame's session history. |
+ // The item sequence number identifies each stop in the back/forward history |
+ // and is globally unique. The document sequence number increments for each |
+ // new document and is also globally unique. In-page navigations get a new |
+ // item sequence number but the same document sequence number. |
+ void set_item_sequence_number(int64 item_sequence_number) { |
+ item_sequence_number_ = item_sequence_number; |
+ } |
+ int64 item_sequence_number() const { return item_sequence_number_; } |
+ void set_document_sequence_number(int64 document_sequence_number) { |
+ document_sequence_number_ = document_sequence_number; |
+ } |
+ int64 document_sequence_number() const { return document_sequence_number_; } |
+ |
// The SiteInstance responsible for rendering this frame. All frames sharing |
// a SiteInstance must live in the same process. This is a refcounted pointer |
// that keeps the SiteInstance (not necessarily the process) alive as long as |
@@ -84,6 +101,8 @@ class CONTENT_EXPORT FrameNavigationEntry |
// See the accessors above for descriptions. |
int64 frame_tree_node_id_; |
+ int64 item_sequence_number_; |
+ int64 document_sequence_number_; |
scoped_refptr<SiteInstanceImpl> site_instance_; |
GURL url_; |
Referrer referrer_; |