Move GetBaseAppName into install_static.

chrome/install_static/chromium_install_modes.cc

Index: chrome/install_static/chromium_install_modes.cc
diff --git a/chrome/install_static/chromium_install_modes.cc b/chrome/install_static/chromium_install_modes.cc
index 7592c20960665ef16533db317f551fec0b88c185..816c6d90b3f8da1a6fe8b515be2bec0e76e99b8e 100644
--- a/chrome/install_static/chromium_install_modes.cc
+++ b/chrome/install_static/chromium_install_modes.cc
@@ -32,6 +32,7 @@ const InstallConstants kInstallModes[] = {
         L"",             // Empty install_suffix for the primary install mode.
         L"",             // No logo suffix for the primary install mode.
         L"",          // Empty app_guid since no integraion with Google Update.
+        L"Chromium",  // A distinct base_app_name.
         L"Chromium",  // A distinct base_app_id.
         L"ChromiumHTM",                             // ProgID prefix.
         L"Chromium HTML Document",                  // ProgID description.