Partial fix for keyboard occlusion.

ui/keyboard/keyboard_controller.cc

Index: ui/keyboard/keyboard_controller.cc
diff --git a/ui/keyboard/keyboard_controller.cc b/ui/keyboard/keyboard_controller.cc
index c948ca04beee84730d823e4ac4c436f2de71a76a..686f6bb9d582c88b51c684f3f4eeab8eaf8b8674 100644
--- a/ui/keyboard/keyboard_controller.cc
+++ b/ui/keyboard/keyboard_controller.cc
@@ -141,6 +141,14 @@ aura::Window* KeyboardController::GetContainerWindow() {
   return container_;
 }
 
+void KeyboardController::AddObserver(Observer* observer) {
+  observer_list_.AddObserver(observer);
+}
+
+void KeyboardController::RemoveObserver(Observer* observer) {
+  observer_list_.RemoveObserver(observer);
+}
+
 void KeyboardController::OnWindowParentChanged(aura::Window* window,
                                                aura::Window* parent) {
   OnTextInputStateChanged(proxy_->GetInputMethod()->GetTextInputClient());
@@ -156,6 +164,7 @@ void KeyboardController::OnTextInputStateChanged(
   if (!container_)
     return;
 
+  bool was_showing = container_->IsVisible();
   if (!client || client->GetTextInputType() == ui::TEXT_INPUT_TYPE_NONE) {
     container_->Hide();
   } else {
@@ -168,6 +177,17 @@ void KeyboardController::OnTextInputStateChanged(
     container_->parent()->StackChildAtTop(container_);
     container_->Show();
   }
+  bool is_showing = container_->IsVisible();
+
+  if (was_showing != is_showing) {
+    FOR_EACH_OBSERVER(
+        Observer,
+        observer_list_,
+        OnKeyboardBoundsChanged(
+            is_showing ? container_->children()[0]->bounds() :
+                gfx::Rect(0, 0, 0, 0)));

[sadrul, 2013/04/26 02:54:16]

just gfx::Rect()

[bryeung, 2013/04/26 13:44:50]

Oh, that's nicer.  Thanks!

+  }
+
   // TODO(bryeung): whenever the TextInputClient changes we need to notify the
   // keyboard (with the TextInputType) so that it can reset it's state (e.g.
   // abandon compositions in progress)