Support mozc suggest window on ChromeOS.

chrome/browser/chromeos/input_method/candidate_window_view.h

Index: chrome/browser/chromeos/input_method/candidate_window_view.h
diff --git a/chrome/browser/chromeos/input_method/candidate_window_view.h b/chrome/browser/chromeos/input_method/candidate_window_view.h
index fcbc7585b4cd338d87365d11e0f05282066edbe9..06e3120ce7ffb5f45307dd735668099764c15a8f 100644
--- a/chrome/browser/chromeos/input_method/candidate_window_view.h
+++ b/chrome/browser/chromeos/input_method/candidate_window_view.h
@@ -177,6 +177,16 @@ class CandidateWindowView : public views::View {
   // The last cursor location.
   gfx::Rect cursor_location_;
 
+  // This location is used by suggestion window rendering which is mostly used
+  // by ibus-mozc. The suggestion window should be aligned with the composition
+  // text as opposed to the cursor. In case of ibus-mozc, suggestion window
+  // location is calculated by engine and it carried by update_lookup_table
+  // signal as additional information. This value is available when
+  // is_suggestion_window_available is true.
+  gfx::Rect suggestion_window_location_;
+
+  bool is_suggestion_window_location_available_;
+
   DISALLOW_COPY_AND_ASSIGN(CandidateWindowView);
 };