Adds link disambiguation popup support to Windows.

ui/keyboard/keyboard_controller.cc

 // Copyright (c) 2013 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 "ui/keyboard/keyboard_controller.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "content/public/browser/render_widget_host.h"
 #include "content/public/browser/render_widget_host_iterator.h"
@@ skipping 100 matching lines @@
   virtual bool HasHitTestMask() const OVERRIDE {
     return !proxy_ || proxy_->HasKeyboardWindow();
   }
   virtual void GetHitTestMask(gfx::Path* mask) const OVERRIDE {
     if (proxy_ && !proxy_->HasKeyboardWindow())
       return;
     gfx::Rect keyboard_bounds = proxy_ ? proxy_->GetKeyboardWindow()->bounds() :
         keyboard::DefaultKeyboardBoundsFromWindowBounds(bounds_);
     mask->addRect(RectToSkRect(keyboard_bounds));
   }
+  virtual void OnLinkDisambiguationPopupRequested(
+      const gfx::Rect& target_rect, const SkBitmap& zoomed_bitmap) OVERRIDE {}

[cpu_(ooo_6.6-7.5), 2014/07/20 01:54:06]

what happens if the user starts typing, should we dismiss?

If this is missing it should go in a follow up CL, or maybe the is a case in
which we should just eat the keystrokes until the LDP is closed?

[luken, 2014/07/21 18:01:29]

The LDP eats keystrokes, but will close if the user hits the ESC key. Also any
click outside of the LDP will close it. That's what currently happens. I'm open
to suggestions, what do you think should happen? Dismiss on all keystrokes?

 
   gfx::Rect bounds_;
   keyboard::KeyboardControllerProxy* proxy_;
 
   DISALLOW_COPY_AND_ASSIGN(KeyboardWindowDelegate);
 };
 
 void ToggleTouchEventLogging(bool enable) {
 #if defined(OS_CHROMEOS)
   if (!base::SysInfo::IsRunningOnChromeOS())
@@ skipping 415 matching lines @@
 
 void KeyboardController::RemoveBoundsChangedObserver(aura::Window* window) {
   aura::Window* target_window = GetFrameWindow(window);
   if (target_window &&
       target_window->HasObserver(window_bounds_observer_.get())) {
     target_window->RemoveObserver(window_bounds_observer_.get());
   }
 }
 
 }  // namespace keyboard