Implement first part of supporting global extension commands.

chrome/browser/extensions/api/commands/command_service.cc

Index: chrome/browser/extensions/api/commands/command_service.cc
diff --git a/chrome/browser/extensions/api/commands/command_service.cc b/chrome/browser/extensions/api/commands/command_service.cc
index 5d38936f1aba3355f5fa43942d57741e4bc2eae1..7faadb9e2bb7904ffbd1155e3e51cf39e2670c8c 100644
--- a/chrome/browser/extensions/api/commands/command_service.cc
+++ b/chrome/browser/extensions/api/commands/command_service.cc
@@ -125,6 +125,7 @@ bool CommandService::GetScriptBadgeCommand(
 
 bool CommandService::GetNamedCommands(const std::string& extension_id,
                                       QueryType type,
+                                      CommandScope scope,
                                       extensions::CommandMap* command_map) {
   const ExtensionSet* extensions =
       ExtensionSystem::Get(profile_)->extension_service()->extensions();
@@ -146,6 +147,9 @@ bool CommandService::GetNamedCommands(const std::string& extension_id,
       continue;
 
     extensions::Command command = iter->second;
+    if (scope != ANY_SCOPE && ((scope == GLOBAL) != command.global()))
+      continue;
+
     if (shortcut_assigned.key_code() != ui::VKEY_UNKNOWN)
       command.set_accelerator(shortcut_assigned);