Upstream printing changes.

android_webview/common/print_messages.h

Index: android_webview/common/print_messages.h
diff --git a/chrome/common/print_messages.h b/android_webview/common/print_messages.h
similarity index 95%
copy from chrome/common/print_messages.h
copy to android_webview/common/print_messages.h
index d4de3ce4f6cd36bebebc1d808b33bf0b512c5d32..bf304284f6758ce4eafd8fe9adbf1d9ae98ca1ad 100644
--- a/chrome/common/print_messages.h
+++ b/android_webview/common/print_messages.h
@@ -5,6 +5,8 @@
 // IPC messages for printing.
 // Multiply-included message file, hence no include guard.
 
+// TODO(sgurun) copied from chrome/common. Remove after crbug.com/322276
+
 #include <string>
 #include <vector>
 
@@ -17,8 +19,8 @@
 #include "ui/gfx/native_widget_types.h"
 #include "ui/gfx/rect.h"
 
-#ifndef CHROME_COMMON_PRINT_MESSAGES_H_
-#define CHROME_COMMON_PRINT_MESSAGES_H_
+#ifndef AW_COMMON_PRINT_MESSAGES_H_
+#define AW_COMMON_PRINT_MESSAGES_H_
 
 struct PrintMsg_Print_Params {
   PrintMsg_Print_Params();
@@ -70,7 +72,7 @@ struct PrintHostMsg_RequestPrintPreview_Params {
   bool selection_only;
 };
 
-#endif  // CHROME_COMMON_PRINT_MESSAGES_H_
+#endif  // AW_COMMON_PRINT_MESSAGES_H_
 
 #define IPC_MESSAGE_START PrintMsgStart
 
@@ -183,6 +185,10 @@ IPC_STRUCT_TRAITS_END()
 
 // Parameters to describe a rendered document.
 IPC_STRUCT_BEGIN(PrintHostMsg_DidPreviewDocument_Params)
+  // True when we can reuse existing preview data. |metafile_data_handle| and
+  // |data_size| should not be used when this is true.
+  IPC_STRUCT_MEMBER(bool, reuse_existing_data)
+
   // A shared memory handle to metafile data.
   IPC_STRUCT_MEMBER(base::SharedMemoryHandle, metafile_data_handle)
 
@@ -362,18 +368,15 @@ IPC_SYNC_MESSAGE_ROUTED1_1(PrintHostMsg_ScriptedPrint,
                            PrintMsg_PrintPages_Params
                                /* settings chosen by the user*/)
 
-#if defined(OS_CHROMEOS) || defined(OS_ANDROID)
+#if defined(OS_ANDROID)
 // Asks the browser to create a temporary file for the renderer to fill
 // in resulting NativeMetafile in printing.
-IPC_SYNC_MESSAGE_CONTROL1_2(PrintHostMsg_AllocateTempFileForPrinting,
-                            int /* render_view_id */,
-                            base::FileDescriptor /* temp file fd */,
-                            int /* fd in browser*/) // Used only by Chrome OS.
-IPC_MESSAGE_CONTROL2(PrintHostMsg_TempFileForPrintingWritten,
-                     int /* render_view_id */,
-                     int /* fd in browser */) // Used only by Chrome OS.
+IPC_SYNC_MESSAGE_ROUTED0_2(PrintHostMsg_AllocateTempFileForPrinting,
+                           base::FileDescriptor /* temp file fd */,
+                           int /* fd in browser*/)
+IPC_MESSAGE_ROUTED1(PrintHostMsg_TempFileForPrintingWritten,
+                    int /* fd in browser */)
 #endif
-
 // Asks the browser to do print preview.
 IPC_MESSAGE_ROUTED1(PrintHostMsg_RequestPrintPreview,
                     PrintHostMsg_RequestPrintPreview_Params /* params */)