Early return in ::SetTooltipText in case GetView returns null

content/browser/renderer_host/render_widget_host_impl.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_impl.h"
 
 #include <math.h>
 
 #include <set>
 #include <tuple>
@@ skipping 1741 matching lines @@
     delegate_->GetInputEventRouter()->OnHittestData(params);
 }
 
 void RenderWidgetHostImpl::OnClose() {
   ShutdownAndDestroyWidget(true);
 }
 
 void RenderWidgetHostImpl::OnSetTooltipText(
     const base::string16& tooltip_text,
     WebTextDirection text_direction_hint) {
+  if (!GetView())
+    return;
+
   // First, add directionality marks around tooltip text if necessary.
   // A naive solution would be to simply always wrap the text. However, on
   // windows, Unicode directional embedding characters can't be displayed on
   // systems that lack RTL fonts and are instead displayed as empty squares.
   //
   // To get around this we only wrap the string when we deem it necessary i.e.
   // when the locale direction is different than the tooltip direction hint.
   //
   // Currently, we use element's directionality as the tooltip direction hint.
   // An alternate solution would be to set the overall directionality based on
   // trying to detect the directionality from the tooltip text rather than the
   // element direction.  One could argue that would be a preferable solution
   // but we use the current approach to match Fx & IE's behavior.
   base::string16 wrapped_tooltip_text = tooltip_text;
   if (!tooltip_text.empty()) {
     if (text_direction_hint == blink::WebTextDirectionLeftToRight) {
       // Force the tooltip to have LTR directionality.
       wrapped_tooltip_text =
           base::i18n::GetDisplayStringInLTRDirectionality(wrapped_tooltip_text);
     } else if (text_direction_hint == blink::WebTextDirectionRightToLeft &&
                !base::i18n::IsRTL()) {
       // Force the tooltip to have RTL directionality.
       base::i18n::WrapStringWithRTLFormatting(&wrapped_tooltip_text);
     }
   }
-  if (GetView())
-    view_->SetTooltipText(wrapped_tooltip_text);
+  view_->SetTooltipText(wrapped_tooltip_text);
 }
 
 void RenderWidgetHostImpl::OnUpdateScreenRectsAck() {
   waiting_for_screen_rects_ack_ = false;
   if (!view_)
     return;
 
   if (view_->GetViewBounds() == last_view_screen_rect_ &&
       view_->GetBoundsInRootWindow() == last_window_screen_rect_) {
     return;
@@ skipping 713 matching lines @@
     // different from the receiver's.
     file_system_file.url =
         GURL(storage::GetIsolatedFileSystemRootURIString(
                  file_system_url.origin(), filesystem_id, std::string())
                  .append(register_name));
     file_system_file.filesystem_id = filesystem_id;
   }
 }
 
 }  // namespace content