Expose WebContents from PrintingContextDelegate

chrome/browser/printing/print_job_worker.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 "chrome/browser/printing/print_job_worker.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/callback.h"
 #include "base/compiler_specific.h"
@@ skipping 26 matching lines @@
 }
 
 class PrintingContextDelegate : public PrintingContext::Delegate {
  public:
   PrintingContextDelegate(int render_process_id, int render_view_id);
   ~PrintingContextDelegate() override;
 
   gfx::NativeView GetParentView() override;
   std::string GetAppLocale() override;
 
+  // Not exposed to PrintingContext::Delegate because of dependency issues.
+  content::WebContents* GetWebContents();
+
  private:
   int render_process_id_;
   int render_view_id_;
 };
 
 PrintingContextDelegate::PrintingContextDelegate(int render_process_id,
                                                  int render_view_id)
     : render_process_id_(render_process_id),
       render_view_id_(render_view_id) {
 }
 
 PrintingContextDelegate::~PrintingContextDelegate() {
 }
 
 gfx::NativeView PrintingContextDelegate::GetParentView() {
+  content::WebContents* wc = GetWebContents();
+  return wc ? wc->GetNativeView() : nullptr;
+}
+
+content::WebContents* PrintingContextDelegate::GetWebContents() {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   content::RenderViewHost* view =
       content::RenderViewHost::FromID(render_process_id_, render_view_id_);
-  if (!view)
-    return NULL;
-  content::WebContents* wc = content::WebContents::FromRenderViewHost(view);
-  return wc ? wc->GetNativeView() : NULL;
+  return view ? content::WebContents::FromRenderViewHost(view) : nullptr;
 }
 
 std::string PrintingContextDelegate::GetAppLocale() {
   return g_browser_process->GetApplicationLocale();
 }
 
 void NotificationCallback(PrintJobWorkerOwner* print_job,
                           JobEventDetails::Type detail_type,
                           PrintedDocument* document,
                           PrintedPage* page) {
@@ skipping 324 matching lines @@
                               document_,
                               scoped_refptr<PrintedPage>()));
   Cancel();
 
   // Makes sure the variables are reinitialized.
   document_ = NULL;
   page_number_ = PageNumber::npos();
 }
 
 }  // namespace printing