Modify old Panel test files and include them in .gyp.

chrome/browser/ui/panels/base_panel_browser_test.cc

Index: chrome/browser/ui/panels/base_panel_browser_test.cc
diff --git a/chrome/browser/ui/panels/base_panel_browser_test.cc b/chrome/browser/ui/panels/base_panel_browser_test.cc
index 52180e76eb72eb10e67844bcd87ce4ffa635102c..a472bfeb38c0fbccf956b53de994976bb8632637 100644
--- a/chrome/browser/ui/panels/base_panel_browser_test.cc
+++ b/chrome/browser/ui/panels/base_panel_browser_test.cc
@@ -330,20 +330,6 @@ Panel* BasePanelBrowserTest::CreatePanelWithParams(
     EXPECT_TRUE(panel->auto_resizable());
   }
 
-#if defined(OS_LINUX)
-  // On bots, we might have a simple window manager which always activates new
-  // windows, and can't always deactivate them. Keep track of the previously
-  // active window so we can activate that window back to ensure the new window
-  // is inactive.
-  Browser* last_active_browser_to_restore = NULL;
-  if (params.expected_active_state == SHOW_AS_INACTIVE &&
-      ui::GuessWindowManager() == ui::WM_ICE_WM) {
-    last_active_browser_to_restore = BrowserList::GetLastActive();
-    EXPECT_TRUE(last_active_browser_to_restore);
-    EXPECT_NE(last_active_browser_to_restore, panel_browser);
-  }
-#endif
-
   if (params.show_flag == SHOW_AS_ACTIVE) {
     panel->Show();
   } else {
@@ -354,9 +340,13 @@ Panel* BasePanelBrowserTest::CreatePanelWithParams(
     MessageLoopForUI::current()->RunAllPending();
 
 #if defined(OS_LINUX)
-    // Restore focus where it was. It will deactivate the new panel.
-    if (last_active_browser_to_restore)
-      last_active_browser_to_restore->window()->Activate();
+    // On bots, we might have a simple window manager which always activates new
+    // windows, and can't always deactivate them. Re-activate the main tabbed
+    // browser to "deactivate" the newly created panel.
+    if (params.expected_active_state == SHOW_AS_INACTIVE &&
+        ui::GuessWindowManager() == ui::WM_ICE_WM) {
+      browser()->window()->Activate();
+    }
 #endif
     // More waiting, because gaining or losing focus may require inter-process
     // asynchronous communication, and it is not enough to just run the local