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

ui/base/models/accelerator.h

Index: ui/base/models/accelerator.h
diff --git a/ui/base/models/accelerator.h b/ui/base/models/accelerator.h
index 83170b79a48bf286f51bb872a8d3c2c68ae478c8..42de42ab4a5ea353277135432cfc146b2f9e5098 100644
--- a/ui/base/models/accelerator.h
+++ b/ui/base/models/accelerator.h
@@ -2,11 +2,19 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+// This class describe a keyboard accelerator (or keyboard shortcut).
+// Keyboard accelerators are registered with the FocusManager.
+// It has a copy constructor and assignment operator so that it can be copied.
+// It also defines the < operator so that it can be used as a key in a std::map.
+//
+
 #ifndef UI_BASE_MODELS_ACCELERATOR_H_
 #define UI_BASE_MODELS_ACCELERATOR_H_
 #pragma once
 
+#include "base/string16.h"
 #include "ui/base/keycodes/keyboard_codes.h"
+#include "ui/base/events.h"
 #include "ui/base/ui_export.h"
 
 namespace ui {
@@ -26,6 +34,18 @@ class UI_EXPORT Accelerator {
     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) {
@@ -56,6 +76,21 @@ class UI_EXPORT Accelerator {
 
   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;
+  }
+
+  // Returns a string with the localized shortcut if any.
+  string16 GetShortcutText() const;
+
  protected:
   // The keycode (VK_...).
   ui::KeyboardCode key_code_;
@@ -64,6 +99,17 @@ class UI_EXPORT Accelerator {
   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.