Do not consider WMII as supporting _NET_ACTIVE_WINDOW

chrome/browser/metrics/chrome_browser_main_extra_parts_metrics.cc

Index: chrome/browser/metrics/chrome_browser_main_extra_parts_metrics.cc
diff --git a/chrome/browser/metrics/chrome_browser_main_extra_parts_metrics.cc b/chrome/browser/metrics/chrome_browser_main_extra_parts_metrics.cc
index a7e77fe27576fb9d2d39812071315d4dc7f0f688..64c01a71f77087d0d41986768434f9542925975b 100644
--- a/chrome/browser/metrics/chrome_browser_main_extra_parts_metrics.cc
+++ b/chrome/browser/metrics/chrome_browser_main_extra_parts_metrics.cc
@@ -71,6 +71,7 @@ enum UMALinuxWindowManager {
   UMA_LINUX_WINDOW_MANAGER_QTILE,
   UMA_LINUX_WINDOW_MANAGER_RATPOISON,
   UMA_LINUX_WINDOW_MANAGER_STUMPWM,
+  UMA_LINUX_WINDOW_MANAGER_WMII,
   // NOTE: Append new window managers to the list above this line (i.e. don't
   // renumber) and update LinuxWindowManagerName in
   // tools/metrics/histograms/histograms.xml accordingly.
@@ -181,6 +182,8 @@ UMALinuxWindowManager GetLinuxWindowManager() {
       return UMA_LINUX_WINDOW_MANAGER_RATPOISON;
     case ui::WM_STUMPWM:
       return UMA_LINUX_WINDOW_MANAGER_STUMPWM;
+    case ui::WM_WMII:
+      return UMA_LINUX_WINDOW_MANAGER_WMII;
     case ui::WM_XFWM4:
       return UMA_LINUX_WINDOW_MANAGER_XFWM4;
   }