Move views::Accelerator to ui in order to use it from aura code.

ui/base/models/accelerator.h

 // Copyright (c) 2011 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.
 
 #ifndef UI_BASE_MODELS_ACCELERATOR_H_
 #define UI_BASE_MODELS_ACCELERATOR_H_
 #pragma once
 
+#include "ui/base/events.h"
 #include "ui/base/keycodes/keyboard_codes.h"
 #include "ui/base/ui_export.h"
 
 namespace ui {
 
 // This is a cross-platform base class for accelerator keys used in menus. It is
 // meant to be subclassed for concrete toolkit implementations.
 class UI_EXPORT Accelerator {
  public:
   Accelerator() : key_code_(ui::VKEY_UNKNOWN), modifiers_(0) {}
 
   Accelerator(ui::KeyboardCode keycode, int modifiers)
       : key_code_(keycode),
         modifiers_(modifiers) {}
 
   Accelerator(const Accelerator& accelerator) {
     key_code_ = accelerator.key_code_;
     modifiers_ = accelerator.modifiers_;
   }
 
+  Accelerator(ui::KeyboardCode keycode,
+              bool shift_pressed, bool ctrl_pressed, bool alt_pressed) {
+    key_code_ = keycode;
+    modifiers_ = 0;
+    if (shift_pressed)
+      modifiers_ |= ui::EF_SHIFT_DOWN;
+    if (ctrl_pressed)
+      modifiers_ |= ui::EF_CONTROL_DOWN;
+    if (alt_pressed)
+      modifiers_ |= ui::EF_ALT_DOWN;
+  }
+
   virtual ~Accelerator() {}
 
   Accelerator& operator=(const Accelerator& accelerator) {
     if (this != &accelerator) {
       key_code_ = accelerator.key_code_;
       modifiers_ = accelerator.modifiers_;
     }
     return *this;
   }
 
@@ skipping 10 matching lines @@
   }
 
   bool operator !=(const Accelerator& rhs) const {
     return !(*this == rhs);
   }
 
   ui::KeyboardCode key_code() const { return key_code_; }
 
   int modifiers() const { return modifiers_; }
 
+  bool IsShiftDown() const {
+    return (modifiers_ & ui::EF_SHIFT_DOWN) == ui::EF_SHIFT_DOWN;
+  }
+
+  bool IsCtrlDown() const {
+    return (modifiers_ & ui::EF_CONTROL_DOWN) == ui::EF_CONTROL_DOWN;
+  }
+
+  bool IsAltDown() const {
+    return (modifiers_ & ui::EF_ALT_DOWN) == ui::EF_ALT_DOWN;
+  }
+
  protected:
   // The keycode (VK_...).
   ui::KeyboardCode key_code_;
 
   // The state of the Shift/Ctrl/Alt keys (platform-dependent).
   int modifiers_;
 };
 
+// An interface that classes that want to register for keyboard accelerators
+// should implement.
+class UI_EXPORT AcceleratorTarget {
+ public:
+  // This method should return true if the accelerator was processed.
+  virtual bool AcceleratorPressed(const Accelerator& accelerator) = 0;
+
+ protected:
+  virtual ~AcceleratorTarget() {}
+};
+
 // Since acclerator code is one of the few things that can't be cross platform
 // in the chrome UI, separate out just the GetAcceleratorForCommandId() from
 // the menu delegates.
 class AcceleratorProvider {
  public:
   // Gets the accelerator for the specified command id. Returns true if the
   // command id has a valid accelerator, false otherwise.
   virtual bool GetAcceleratorForCommandId(int command_id,
                                           ui::Accelerator* accelerator) = 0;
 
  protected:
   virtual ~AcceleratorProvider() {}
 };
 
 }  // namespace ui
 
 #endif  // UI_BASE_MODELS_ACCELERATOR_H_