Implement installation of the Chrome App Host.

chrome/chrome_installer.gypi

Index: chrome/chrome_installer.gypi
diff --git a/chrome/chrome_installer.gypi b/chrome/chrome_installer.gypi
index 8d32b8417ba6dedf00dbcfdb6d35584d43cf58e0..748ebb19e190095f2a26c70f3a0bc8fd77db4410 100644
--- a/chrome/chrome_installer.gypi
+++ b/chrome/chrome_installer.gypi
@@ -262,6 +262,8 @@
             'installer_util_strings',
             '../base/base.gyp:base',
             '../build/temp_gyp/googleurl.gyp:googleurl',
+	    '../chrome/chrome.gyp:app_host',

[grt (UTC plus 2), 2012/07/12 18:37:10]

in the past, mini_installer (in chrome/installer/mini_installer.gyp) was the
thing that depended on chrome.  is it not suitable to put the dependency on
app_host there rather than here?  i think it's desirable to be able to build
setup.exe without building chrome and the app host.

[erikwright (departed), 2012/07/16 20:13:11]

Hm. I guess so. Ultimately it seems pretty useless to build setup without
building the archive, but these lines don't address that, so I can take them
out.

[grt (UTC plus 2), 2012/07/23 11:31:12]

FWIW, setup.exe has a growing number of responsibilities that don't require the
archive.

+	    '../chrome/chrome.gyp:chrome',
             '../chrome_frame/chrome_frame.gyp:chrome_tab_idl',
             '../chrome_frame/chrome_frame.gyp:npchrome_frame',
             '../breakpad/breakpad.gyp:breakpad_handler',