Create MetroViewerProcessHost as a common base for TestMetroViewerProcessHost and ChromeMetroViewer…

chrome/chrome_browser.gypi

Index: chrome/chrome_browser.gypi
diff --git a/chrome/chrome_browser.gypi b/chrome/chrome_browser.gypi
index 9192b78045f679c184578aa63eccb2da54b973ed..dfcd360a1649abae14f0391812984d073c40a48f 100644
--- a/chrome/chrome_browser.gypi
+++ b/chrome/chrome_browser.gypi
@@ -1094,6 +1094,8 @@
         'browser/metrics/variations/variations_request_scheduler_mobile.h',
         'browser/metrics/variations/variations_service.cc',
         'browser/metrics/variations/variations_service.h',
+        'browser/metro_viewer/chrome_metro_viewer_process_host_aurawin.cc',
+        'browser/metro_viewer/chrome_metro_viewer_process_host_aurawin.h',
         'browser/native_window_notification_source.h',
         'browser/net/about_protocol_handler.cc',
         'browser/net/about_protocol_handler.h',
@@ -2636,10 +2638,6 @@
             ['exclude', '^browser/lifetime/application_lifetime_stub.cc'],
             ['exclude', '^browser/renderer_host/render_widget_host_view_views*'],
           ],
-          'sources': [
-            'browser/metro_viewer/metro_viewer_process_host_win.cc',
-            'browser/metro_viewer/metro_viewer_process_host_win.h',
-          ],
           'dependencies': [
             '../ui/aura/aura.gyp:aura',
             '../ui/compositor/compositor.gyp:compositor',
@@ -2654,7 +2652,8 @@
               ],
               'dependencies': [
                 'launcher_support',
-                '../ui/metro_viewer/metro_viewer.gyp:metro_viewer',
+                '../ui/metro_viewer/metro_viewer.gyp:metro_viewer_messages',
+                '../win8/win8.gyp:metro_viewer',
               ],
             }],
           ],