Revert 148046 - Revert 147650 - Implement installation of the Chrome App Host.

chrome/installer/util/product.h

Index: chrome/installer/util/product.h
===================================================================
--- chrome/installer/util/product.h	(revision 148103)
+++ chrome/installer/util/product.h	(working copy)
@@ -56,6 +56,14 @@
     return distribution_->GetType() == BrowserDistribution::CHROME_FRAME;
   }
 
+  bool is_chrome_app_host() const {
+    return distribution_->GetType() == BrowserDistribution::CHROME_APP_HOST;
+  }
+
+  bool is_chrome_binaries() const {
+    return distribution_->GetType() == BrowserDistribution::CHROME_BINARIES;
+  }
+
   bool HasOption(const std::wstring& option) const {
     return options_.find(option) != options_.end();
   }