remove browser.__SS_* properties and SessionStore

title: from `tab.label`
url: from `browser.contentDocument.location.href`

Fixes issue 861
Update issue 859
Now, no more needs to use SessionStore for getting title and url.

Author: teramako

common/content/buffer.js

@@ -1349,18 +1349,10 @@ const Buffer = Module("buffer", {
                 return "#";
             return " ";
         }
-        const SessionStore = services.get("sessionStore");
         function getURLFromTab (tab) {
-            if ("linkedBrowser" in tab) {
-                if ("__SS_restoreState" in tab.linkedBrowser) {
-                    let tabState = JSON.parse(SessionStore.getTabState(tab));
-                    if (tabState.entries.length)
-                        return tabState.entries.slice(-1)[0].url;
-                    else
-                        return tabState.userTypedValue || 'about:blank';
-                } else
-                    return tab.linkedBrowser.contentDocument.location.href;
-            } else {
+            if ("linkedBrowser" in tab)
+                return tab.linkedBrowser.contentDocument.location.href;
+            else {
                 let i = config.tabbrowser.mTabContainer.getIndexOfItem(tab);
                 let info = config.tabbrowser.tabInfo[i];
                 return info.browser ?

common/content/tabs.js

@@ -417,7 +417,6 @@ const Tabs = Module("tabs", {
             }
         }
 
-        const SessionStore = services.get("sessionStore")
         matches = [];
         let lowerBuffer = buffer.toLowerCase();
         let first = tabs.index();
@@ -426,18 +425,8 @@ const Tabs = Module("tabs", {
             let index = (i + first) % nbrowsers;
             let browser = config.tabbrowser.browsers[index];
             let tab = tabs.getTab(index);
-            let url, title;
-            if ("__SS_restoreState" in browser) {
-                let tabState = JSON.parse(SessionStore.getTabState(tab));
-                let entry = tabState.entries[tabState.index - 1];
-                url = entry.url;
-                title = entry.title || url;
-            }
-            else {
-                url = browser.contentDocument.location.href;
-                title = browser.contentDocument.title;
-            }
-            title = title.toLowerCase();
+            let url = borwser.contentDocument.location.href;
+            let title = tab.label.toLowerCase();
             if (url == buffer)
                 return [tab];