Remove support for non-browser products from InstallationState and ProductState.

chrome/installer/util/install_util.h

Index: chrome/installer/util/install_util.h
diff --git a/chrome/installer/util/install_util.h b/chrome/installer/util/install_util.h
index 91f9a9a73645a656aae5c3f74318342b4fb164d6..800c803cfbd8874fdd839c0bac6f2c3879be6db0 100644
--- a/chrome/installer/util/install_util.h
+++ b/chrome/installer/util/install_util.h
@@ -46,9 +46,7 @@ class InstallUtil {
   // Reads the uninstall command for Chromium from registry and returns it.
   // If system_install is true the command is read from HKLM, otherwise

[huangs, 2017/01/09 09:09:10]

NIT: Unwrap; and use |system_install|. Also should mention that empty command
line is returned if nothing is found?

[grt (UTC plus 2), 2017/01/09 10:11:45]

Done.

   // from HKCU.
-  static base::CommandLine GetChromeUninstallCmd(
-      bool system_install,
-      BrowserDistribution::Type distribution_type);
+  static base::CommandLine GetChromeUninstallCmd(bool system_install);
 
   // Find the version of Chrome installed on the system by checking the
   // Google Update registry key. Fills |version| with the version or a