Implement virtual keyboard hiding.

chrome/browser/extensions/api/input/input.cc

Index: chrome/browser/extensions/api/input/input.cc
diff --git a/chrome/browser/extensions/api/input/input.cc b/chrome/browser/extensions/api/input/input.cc
index b4d264fcbec26bc28dc068196428d7b505126d8a..cef26a5344d254a41a037126160cceaa775f11f8 100644
--- a/chrome/browser/extensions/api/input/input.cc
+++ b/chrome/browser/extensions/api/input/input.cc
@@ -4,12 +4,14 @@
 
 #include "chrome/browser/extensions/api/input/input.h"
 
+#include "ash/root_window_controller.h"
 #include "base/lazy_instance.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/string16.h"
 #include "chrome/browser/extensions/extension_function_registry.h"
 #include "content/public/browser/browser_thread.h"
 #include "ui/base/events/event.h"
+#include "ui/keyboard/keyboard_controller.h"
 
 #if defined(USE_ASH)
 #include "ash/shell.h"
@@ -38,10 +40,24 @@ bool InsertTextInputFunction::RunImpl() {
   return false;
 }
 
+bool HideKeyboardFunction::RunImpl() {
+#if defined(USE_ASH)
+  DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
+
+  ash::Shell::GetPrimaryRootWindowController()->keyboard_controller()->
+      HideKeyboard();
+
+  return true;
+#endif
+  error_ = kNotYetImplementedError;
+  return false;
+}
+
 InputAPI::InputAPI(Profile* profile) {
   ExtensionFunctionRegistry* registry =
       ExtensionFunctionRegistry::GetInstance();
   registry->RegisterFunction<InsertTextInputFunction>();
+  registry->RegisterFunction<HideKeyboardFunction>();
 }
 
 InputAPI::~InputAPI() {