[Experimental] Supporting OOPIF printing

components/printing/renderer/print_web_view_helper.h

 // 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.
 
 #ifndef COMPONENTS_PRINTING_RENDERER_PRINT_WEB_VIEW_HELPER_H_
 #define COMPONENTS_PRINTING_RENDERER_PRINT_WEB_VIEW_HELPER_H_
 
 #include <memory>
 #include <vector>
 
@@ skipping 157 matching lines @@
     PRINT_PREVIEW_USER_INITIATED_CONTEXT_NODE,
     PRINT_PREVIEW_SCRIPTED  // triggered by window.print().
   };
 
   // RenderFrameObserver implementation.
   void OnDestruct() override;
   void DidStartProvisionalLoad(blink::WebDataSource* data_source) override;
   void DidFailProvisionalLoad(const blink::WebURLError& error) override;
   void DidFinishLoad() override;
   void ScriptedPrint(bool user_initiated) override;
+  void PrintFrame(const gfx::Rect& rect, int src_id) override;
   bool OnMessageReceived(const IPC::Message& message) override;
 
   // Message handlers ---------------------------------------------------------
 #if BUILDFLAG(ENABLE_BASIC_PRINTING)
   void OnPrintPages();
+  void OnPrintPagesWithSettings(const gfx::Rect& rect);
   void OnPrintForSystemDialog();
   void OnPrintForPrintPreview(const base::DictionaryValue& job_settings);
 #endif  // BUILDFLAG(ENABLE_BASIC_PRINTING)
 #if BUILDFLAG(ENABLE_PRINT_PREVIEW)
   void OnInitiatePrintPreview(bool has_selection);
   void OnPrintPreview(const base::DictionaryValue& settings);
 #endif  // BUILDFLAG(ENABLE_PRINT_PREVIEW)
   void OnPrintingDone(bool success);
 
   // Get |page_size| and |content_area| information from
@@ skipping 119 matching lines @@
   static float RenderPageContent(blink::WebFrame* frame,
                                  int page_number,
                                  const gfx::Rect& canvas_area,
                                  const gfx::Rect& content_area,
                                  double scale_factor,
                                  blink::WebCanvas* canvas);
 
   // Helper methods -----------------------------------------------------------
 
   bool CopyMetafileDataToSharedMem(const PdfMetafileSkia& metafile,
-                                   base::SharedMemoryHandle* shared_mem_handle);
+                                   base::SharedMemoryHandle* shared_mem_handle,
+                                   uint32_t* size);
 
   // Helper method to get page layout in points and fit to page if needed.
   static void ComputePageLayoutInPointsForCss(
       blink::WebLocalFrame* frame,
       int page_index,
       const PrintMsg_Print_Params& default_params,
       bool ignore_css_margins,
       double* scale_factor,
       PageSizeMargins* page_layout_in_points);
 
@@ skipping 206 matching lines @@
   base::Closure on_stop_loading_closure_;
 
   base::WeakPtrFactory<PrintWebViewHelper> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PrintWebViewHelper);
 };
 
 }  // namespace printing
 
 #endif  // COMPONENTS_PRINTING_RENDERER_PRINT_WEB_VIEW_HELPER_H_