Remove dependency from ExtensionService to app mode utils.

This is done by introducing a function on the generic extensions browser
client to determine if the system is running in forced app mode.

BUG=298537

Review URL: https://codereview.chromium.org/93783002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@237742 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/browser/extensions/chrome_extensions_browser_client.cc b/chrome/browser/extensions/chrome_extensions_browser_client.cc
index 1cbc1d8..500534e 100644
--- a/chrome/browser/extensions/chrome_extensions_browser_client.cc
+++ b/chrome/browser/extensions/chrome_extensions_browser_client.cc
@@ -6,6 +6,7 @@
 
 #include "base/command_line.h"
 #include "base/version.h"
+#include "chrome/browser/app_mode/app_mode_utils.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/extensions/chrome_app_sorting.h"
 #include "chrome/browser/extensions/extension_prefs.h"
@@ -118,6 +119,10 @@
   return scoped_ptr<AppSorting>(new ChromeAppSorting()).Pass();
 }
 
+bool ChromeExtensionsBrowserClient::IsRunningInForcedAppMode() {
+  return chrome::IsRunningInForcedAppMode();
+}
+
 // static
 ChromeExtensionsBrowserClient* ChromeExtensionsBrowserClient::GetInstance() {
   return g_client.Pointer();