Move implementation from header to source.

chrome/browser/command_updater.cc

Index: chrome/browser/command_updater.cc
diff --git a/chrome/browser/command_updater.cc b/chrome/browser/command_updater.cc
index efb0724968a7311c0020e0610e791f7aa966c89a..b55b09b608aaf0211593d0fe303015c6fbfd36f2 100644
--- a/chrome/browser/command_updater.cc
+++ b/chrome/browser/command_updater.cc
@@ -10,6 +10,9 @@
 #include "base/observer_list.h"
 #include "base/stl_util-inl.h"
 
+CommandUpdater::CommandUpdaterDelegate::~CommandUpdaterDelegate() {
+}
+
 class CommandUpdater::Command {
  public:
   bool enabled;
@@ -42,6 +45,9 @@ void CommandUpdater::ExecuteCommand(int id) {
     delegate_->ExecuteCommand(id);
 }
 
+CommandUpdater::CommandObserver::~CommandObserver() {
+}
+
 void CommandUpdater::UpdateCommandEnabled(int id, bool enabled) {
   Command* command = GetCommand(id, true);
   if (command->enabled == enabled)