added CTRL+Click and SHIFT+Click handler for context menu, Back and Forward.

chrome/browser/ui/browser.cc

Index: chrome/browser/ui/browser.cc
diff --git a/chrome/browser/ui/browser.cc b/chrome/browser/ui/browser.cc
index 4d1777e99271ace15aef6e9ba0c8fc15b03fccc9..e3d8bbc460884c0bab5b74fe058b19461a918f33 100644
--- a/chrome/browser/ui/browser.cc
+++ b/chrome/browser/ui/browser.cc
@@ -1207,6 +1207,7 @@ bool Browser::ShouldOpenNewTabForWindowDisposition(
 TabContents* Browser::GetOrCloneTabForDisposition(
        WindowOpenDisposition disposition) {
   TabContentsWrapper* current_tab = GetSelectedTabContentsWrapper();
+
   if (ShouldOpenNewTabForWindowDisposition(disposition)) {
     current_tab = current_tab->Clone();
     tab_handler_->GetTabStripModel()->AddTabContents(
@@ -1214,6 +1215,7 @@ TabContents* Browser::GetOrCloneTabForDisposition(
         disposition == NEW_FOREGROUND_TAB ? TabStripModel::ADD_ACTIVE :
                                             TabStripModel::ADD_NONE);
   }
+
   return current_tab->tab_contents();
 }
 
@@ -1278,21 +1280,56 @@ void Browser::GoBack(WindowOpenDisposition disposition) {
   UserMetrics::RecordAction(UserMetricsAction("Back"), profile_);
 
   TabContentsWrapper* current_tab = GetSelectedTabContentsWrapper();
-  if (current_tab->controller().CanGoBack()) {
-    TabContents* new_tab = GetOrCloneTabForDisposition(disposition);
+  if (!current_tab->controller().CanGoBack())
+    return;
+
+  if (disposition == NEW_WINDOW) {
+    TabContentsWrapper* new_wrapper = current_tab->Clone();
+
     // If we are on an interstitial page and clone the tab, it won't be copied
     // to the new tab, so we don't need to go back.
     if (current_tab->tab_contents()->showing_interstitial_page() &&
+        (new_wrapper->tab_contents() != current_tab->tab_contents()))
+      return;
+
+    new_wrapper->tab_contents()->controller().GoBack();
+
+    // Make a new normal browser window.
+    Browser* browser = new Browser(Browser::TYPE_NORMAL, profile_);
+    browser->InitBrowserWindow();
+    browser->AddTab(new_wrapper, PageTransition::LINK);
+    browser->window()->Show();
+  } else {
+    TabContents* new_tab = GetOrCloneTabForDisposition(disposition);
+
+    if (current_tab->tab_contents()->showing_interstitial_page() &&
         (new_tab != current_tab->tab_contents()))
       return;
+
     new_tab->controller().GoBack();
   }
 }
 
 void Browser::GoForward(WindowOpenDisposition disposition) {
   UserMetrics::RecordAction(UserMetricsAction("Forward"), profile_);
-  if (GetSelectedTabContentsWrapper()->controller().CanGoForward())
+
+  TabContentsWrapper* current_tab = GetSelectedTabContentsWrapper();
+  if (!current_tab->controller().CanGoForward())
+    return;
+
+  if (disposition == NEW_WINDOW) {
+    TabContentsWrapper* new_wrapper = current_tab->Clone();
+
+    new_wrapper->tab_contents()->controller().GoForward();
+
+    // Make a new normal browser window.
+    Browser* browser = new Browser(Browser::TYPE_NORMAL, profile_);
+    browser->InitBrowserWindow();
+    browser->AddTab(new_wrapper, PageTransition::LINK);
+    browser->window()->Show();
+  } else {
     GetOrCloneTabForDisposition(disposition)->controller().GoForward();
+  }
 }
 
 void Browser::Reload(WindowOpenDisposition disposition) {