Confirm ongoing IME composition at the right render widget in response to mouse click/tap.

content/browser/renderer_host/render_widget_host_view_aura.cc

 // 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.
 
 #include "content/browser/renderer_host/render_widget_host_view_aura.h"
 
 #include <set>
 #include <utility>
 
 #include "base/auto_reset.h"
@@ skipping 2509 matching lines @@
 bool RenderWidgetHostViewAura::NeedsMouseCapture() {
 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
   return NeedsInputGrab();
 #endif
   return false;
 }
 
 void RenderWidgetHostViewAura::FinishImeCompositionSession() {
   if (!has_composition_text_)
     return;
-  // TODO(wjmaclean): can host_ ever be null?
-  if (host_) {
-    host_->ImeConfirmComposition(base::string16(), gfx::Range::InvalidRange(),
-                                 false);
+
+  if (!!text_input_manager_ && !!text_input_manager_->GetActiveWidget()) {
+    text_input_manager_->GetActiveWidget()->ImeConfirmComposition(
+        base::string16(), gfx::Range::InvalidRange(), false);
   }
   ImeCancelComposition();
 }
 
 void RenderWidgetHostViewAura::ModifyEventMovementAndCoords(
     blink::WebMouseEvent* event) {
   // If the mouse has just entered, we must report zero movementX/Y. Hence we
   // reset any global_mouse_position set previously.
   if (event->type == blink::WebInputEvent::MouseEnter ||
       event->type == blink::WebInputEvent::MouseLeave)
@@ skipping 494 matching lines @@
 
 ////////////////////////////////////////////////////////////////////////////////
 // RenderWidgetHostViewBase, public:
 
 // static
 void RenderWidgetHostViewBase::GetDefaultScreenInfo(WebScreenInfo* results) {
   GetScreenInfoForWindow(results, NULL);
 }
 
 }  // namespace content