[Experimental] Supporting OOPIF printing

components/printing/common/print_messages.h

Index: components/printing/common/print_messages.h
diff --git a/components/printing/common/print_messages.h b/components/printing/common/print_messages.h
index 9a90bc11073848958d9128c80dc76bedc54e796a..9765a53aa0f193d49f0aa3295b9600e8e2cd08c8 100644
--- a/components/printing/common/print_messages.h
+++ b/components/printing/common/print_messages.h
@@ -61,6 +61,7 @@ struct PrintMsg_Print_Params {
   base::string16 title;
   base::string16 url;
   bool should_print_backgrounds;
+  bool is_subframe;
 };
 
 struct PrintMsg_PrintPages_Params {
@@ -170,6 +171,9 @@ IPC_STRUCT_TRAITS_BEGIN(PrintMsg_Print_Params)
 
   // True if print backgrounds is requested by the user.
   IPC_STRUCT_TRAITS_MEMBER(should_print_backgrounds)
+
+  // True if this is for printing a subframe for composition.
+  IPC_STRUCT_TRAITS_MEMBER(is_subframe)
 IPC_STRUCT_TRAITS_END()
 
 IPC_STRUCT_BEGIN(PrintMsg_PrintPage_Params)
@@ -248,6 +252,9 @@ IPC_STRUCT_BEGIN(PrintHostMsg_DidPreviewDocument_Params)
 
   // The id of the preview request.
   IPC_STRUCT_MEMBER(int, preview_request_id)
+
+  // Whether this is for a subframe
+  IPC_STRUCT_MEMBER(bool, is_subframe)
 IPC_STRUCT_END()
 
 // Parameters to describe a rendered preview page.
@@ -263,6 +270,9 @@ IPC_STRUCT_BEGIN(PrintHostMsg_DidPreviewPage_Params)
 
   // The id of the preview request.
   IPC_STRUCT_MEMBER(int, preview_request_id)
+
+  // Whether this is for a subframe
+  IPC_STRUCT_MEMBER(bool, is_subframe)
 IPC_STRUCT_END()
 
 // Parameters sent along with the page count.
@@ -311,6 +321,8 @@ IPC_STRUCT_BEGIN(PrintHostMsg_DidPrintPage_Params)
   // The physical offsets of the printer in DPI. Used for PS printing.
   IPC_STRUCT_MEMBER(gfx::Point, physical_offsets)
 
+  // Whether this is for a subframe.
+  IPC_STRUCT_MEMBER(bool, is_subframe)
 IPC_STRUCT_END()
 
 // TODO(dgn) Rename *ScriptedPrint messages because they are not called only
@@ -350,6 +362,9 @@ IPC_MESSAGE_ROUTED1(PrintMsg_PrintForPrintPreview,
 // requested pages and switch back the CSS to display media type.
 IPC_MESSAGE_ROUTED0(PrintMsg_PrintPages)
 
+// Similar as PrintMsg_PrintPages except use preset setttings passed in.
+IPC_MESSAGE_ROUTED1(PrintMsg_PrintPagesWithSettings, gfx::Rect /* size */)
+
 // Like PrintMsg_PrintPages, but using the print preview document's frame/node.
 IPC_MESSAGE_ROUTED0(PrintMsg_PrintForSystemDialog)
 #endif
@@ -493,4 +508,5 @@ IPC_MESSAGE_ROUTED1(PrintHostMsg_ShowScriptedPrintPreview,
 // Notify the browser to set print presets based on source PDF document.
 IPC_MESSAGE_ROUTED1(PrintHostMsg_SetOptionsFromDocument,
                     PrintHostMsg_SetOptionsFromDocument_Params /* params */)
+
 #endif  // BUILDFLAG(ENABLE_PRINT_PREVIEW)