extensions: Extract the dependency on browser_view from extension_input_api.cc.

chrome/browser/extensions/extension_input_api.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/extensions/extension_input_api.h"
 
 #include <string>
 
 #include "base/string_number_conversions.h"
 #include "base/string_util.h"
 #include "base/values.h"
 #include "chrome/browser/extensions/key_identifier_conversion_views.h"
-#include "chrome/browser/ui/browser.h"
-#include "chrome/browser/ui/browser_window.h"
-#include "chrome/browser/ui/views/frame/browser_view.h"
+#include "chrome/browser/ui/top_level_widget.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "ui/base/event.h"
 #include "ui/views/ime/input_method.h"
-#include "ui/views/views_delegate.h"
 #include "ui/views/widget/widget.h"
 
 namespace {
 
 // Keys.
 const char kType[] = "type";
 const char kKeyIdentifier[] = "keyIdentifier";
 const char kAlt[] = "altKey";
 const char kCtrl[] = "ctrlKey";
 const char kMeta[] = "metaKey";
@@ skipping 26 matching lines @@
       (key_identifier.substr(0, 2) == "U+") &&
       (key_identifier.substr(2).find_first_not_of("0123456789abcdefABCDEF") ==
        std::string::npos)) {
     const bool result =
         base::HexStringToInt(key_identifier.substr(2), &character);
     DCHECK(result) << key_identifier;
   }
   return character;
 }
 
-views::Widget* GetTopLevelWidget(Browser* browser) {
-  if (!browser)
-    return NULL;
-
-  BrowserWindow* window = browser->window();
-  if (!window)
-    return NULL;
-
-  BrowserView* browser_view = BrowserView::GetBrowserViewForBrowser(browser);
-  return browser_view ? browser_view->GetWidget() : NULL;
-}
-
 }  // namespace
 
 bool SendKeyboardEventInputFunction::RunImpl() {
   DictionaryValue* args;
   EXTENSION_FUNCTION_VALIDATE(args_->GetDictionary(0, &args));
 
   std::string type_name;
   EXTENSION_FUNCTION_VALIDATE(args->GetString(kType, &type_name));
   ui::EventType type = GetTypeFromString(type_name);
   if (type == ui::ET_UNKNOWN) {
@@ skipping 22 matching lines @@
     flags = prototype_event.flags();
   flags |= (args->GetBoolean(kAlt, &flag) && flag) ? ui::EF_ALT_DOWN : 0;
   flags |= (args->GetBoolean(kCtrl, &flag) && flag) ? ui::EF_CONTROL_DOWN : 0;
   flags |= (args->GetBoolean(kShift, &flag) && flag) ? ui::EF_SHIFT_DOWN : 0;
   if (args->GetBoolean(kMeta, &flag) && flag) {
     // Views does not have a Meta event flag, so return an error for now.
     error_ = kUnsupportedModifier;
     return false;
   }
 
-  views::Widget* widget = GetTopLevelWidget(GetCurrentBrowser());
+  views::Widget* widget =
+      chrome::GetTopLevelWidgetForBrowser(GetCurrentBrowser());
   if (!widget) {
     error_ = kNoValidRecipientError;
     return false;
   }
 
   ui::KeyEvent event(type, prototype_event.key_code(), flags);
   if (character) {
     event.set_character(character);
     event.set_unmodified_character(character);
   }
 
   views::InputMethod* ime = widget->GetInputMethod();
   if (ime) {
     ime->DispatchKeyEvent(event);
   } else if (!widget->OnKeyEvent(event)) {
     error_ = kKeyEventUnprocessedError;
     return false;
   }
 
   return true;
 }