desktop-pwas: Add logging for when the installed extension is disabled

We are seeing instances where the OS Settings apps fails to be installed
because the extension got disabled. Adding logging to figure out the
reason why the extension got disabled.

Bug: 1014166
Change-Id: Ic13505048e6bdb2b0657d63658f2e5c35b42938c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1866095Reviewed-by: Eric Willigers <ericwilligers@chromium.org>
Commit-Queue: Giovanni Ortuño Urquidi <ortuno@chromium.org>
Cr-Commit-Position: refs/heads/master@{#706801}

chrome/browser/web_applications/extensions/bookmark_app_install_finalizer.cc

@@ -22,6 +22,7 @@
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/extensions/manifest_handlers/app_launch_info.h"
 #include "chrome/common/web_application_info.h"
+#include "extensions/browser/extension_prefs.h"
 #include "extensions/browser/extension_registry.h"
 #include "extensions/browser/extension_system.h"
 #include "extensions/browser/uninstall_reason.h"
@@ -241,6 +242,9 @@ void BookmarkAppInstallFinalizer::OnExtensionInstalled(
   DCHECK(extension);
 
   if (extension != GetEnabledExtension(extension->id())) {
+    LOG(ERROR) << "Installed extension was disabled: "
+               << ExtensionPrefs::Get(profile_)->GetDisableReasons(
+                      extension->id());
     std::move(callback).Run(web_app::AppId(),
                             web_app::InstallResultCode::kWebAppDisabled);
     return;