Support multi display candidate window.

chrome/browser/chromeos/input_method/candidate_window.cc

Index: chrome/browser/chromeos/input_method/candidate_window.cc
diff --git a/chrome/browser/chromeos/input_method/candidate_window.cc b/chrome/browser/chromeos/input_method/candidate_window.cc
index 455d643e20763cde4852568bd982700f255dbc2d..5c8ee79066eb95b495f5ae05459ecb4df2da226a 100644
--- a/chrome/browser/chromeos/input_method/candidate_window.cc
+++ b/chrome/browser/chromeos/input_method/candidate_window.cc
@@ -35,6 +35,7 @@
 #if defined(USE_ASH)
 #include "ash/shell.h"
 #include "ash/shell_window_ids.h"
+#include "ash/wm/coordinate_conversion.h"
 #include "ash/wm/window_animations.h"
 #endif  // USE_ASH
 
@@ -1669,6 +1670,18 @@ void CandidateWindowControllerImpl::OnSetCursorLocation(
     return;
   }
 
+#if defined(USE_ASH)
+  aura::RootWindow* root_window =
+      ash::wm::GetRootWindowAt(cursor_location.origin());
+  if (root_window) {
+    gfx::NativeView current_container = ash::Shell::GetContainer(
+        root_window,
+        ash::internal::kShellWindowId_InputMethodContainer);
+    views::Widget::ReparentNativeView(frame_->GetNativeView(),

[mazda, 2012/09/12 16:49:45]

Is it necessary to do this here?
I think ScreenPositionController does reparenting in Widget::SetBounds if bounds
on another root window is set in screen coordinates.

[Seigo Nonaka, 2012/09/12 17:24:50]

Seems transient window like CandidateWindow does not move RootWindow by
ScreenPositionController::SetBounds.

http://code.google.com/searchframe#OAMlx_jo-ck/src/ash/display/screen_positio...

Add comment and moved to ResizeAndMoveParentFrame.

On 2012/09/12 16:49:45, mazda wrote:

+                                      current_container);
+  }
+#endif
+
   // Remember the cursor location.
   candidate_window_->set_cursor_location(cursor_location);
   candidate_window_->set_composition_head_location(composition_head);