Implement Mac Pop-up Dictionary for OOPIF.

content/renderer/render_widget.h

 // 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.
 
 #ifndef CONTENT_RENDERER_RENDER_WIDGET_H_
 #define CONTENT_RENDERER_RENDER_WIDGET_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 80 matching lines @@
 class ExternalPopupMenu;
 class FrameSwapMessageQueue;
 class ImeEventGuard;
 class PepperPluginInstanceImpl;
 class RenderFrameImpl;
 class RenderFrameProxy;
 class RenderWidgetCompositor;
 class RenderWidgetOwnerDelegate;
 class RenderWidgetScreenMetricsEmulator;
 class ResizingModeSelector;
+class TextInputClientObserver;
 struct ContextMenuParams;
 struct ResizeParams;
 
 // RenderWidget provides a communication bridge between a WebWidget and
 // a RenderWidgetHost, the latter of which lives in a different process.
 //
 // RenderWidget is used to implement:
 // - RenderViewImpl (deprecated)
 // - Fullscreen mode (RenderWidgetFullScreen)
 // - Popup "menus" (like the color chooser and date picker)
@@ skipping 281 matching lines @@
   // screen coordinates.
   gfx::Rect RootWindowRect();
 
   // Indicates whether this widget has focus.
   bool has_focus() const { return has_focus_; }
 
   MouseLockDispatcher* mouse_lock_dispatcher() {
     return mouse_lock_dispatcher_.get();
   }
 
+  // TODO(ekaramad): The reference to the focused pepper plugin will be removed
+  // from RenderWidget. The purpose of having the reference here was to make IME
+  // work for OOPIF (https://crbug.com/643727).
   void set_focused_pepper_plugin(PepperPluginInstanceImpl* plugin) {
     focused_pepper_plugin_ = plugin;
   }
 
   // When emulated, this returns original device scale factor.
   float GetOriginalDeviceScaleFactor() const;
 
  protected:
   // Friend RefCounted so that the dtor can be non-public. Using this class
   // without ref-counting is an error.
@@ skipping 396 matching lines @@
   // Mouse Lock dispatcher attached to this view.
   std::unique_ptr<RenderWidgetMouseLockDispatcher> mouse_lock_dispatcher_;
 
   // Wraps the |webwidget_| as a MouseLockDispatcher::LockTarget interface.
   std::unique_ptr<MouseLockDispatcher::LockTarget> webwidget_mouse_lock_target_;
 
  private:
   // Indicates whether this widget has focus.
   bool has_focus_;
 
+#if defined(OS_MACOSX)
+  // Responds to IPCs from TextInputClientMac regarding getting string at given
+  // position or range as well as finding character index at a given position.
+  std::unique_ptr<TextInputClientObserver> text_input_client_observer_;
+#endif
+
   // This reference is set by the RenderFrame and is used to query the IME-
   // related state from the plugin to later send to the browser.
   PepperPluginInstanceImpl* focused_pepper_plugin_;
 
   // Stores edit commands associated to the next key event.
   // Will be cleared as soon as the next key event is processed.
   EditCommands edit_commands_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidget);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_RENDER_WIDGET_H_