Pass printing result to the browser....

chrome/common/temp_scaffolding_stubs.cc

Index: chrome/common/temp_scaffolding_stubs.cc
===================================================================
--- chrome/common/temp_scaffolding_stubs.cc	(revision 25608)
+++ chrome/common/temp_scaffolding_stubs.cc	(working copy)
@@ -4,8 +4,6 @@
 
 #include "chrome/common/temp_scaffolding_stubs.h"
 
-#include "build/build_config.h"
-
 #include <vector>
 
 #include "base/gfx/rect.h"
@@ -15,7 +13,12 @@
 #include "chrome/browser/rlz/rlz.h"
 
 #if defined(OS_LINUX)
+#include "base/path_service.h"
 #include "chrome/browser/dock_info.h"
+#include "chrome/browser/tab_contents/tab_contents.h"
+#include "chrome/common/chrome_paths.h"
+#include "chrome/common/render_messages.h"
+#include "printing/native_metafile.h"
 #endif
 
 #if defined(OS_MACOSX)
@@ -322,3 +325,48 @@
 }
 
 #endif
+
+//------------------------------------------------------------------------------
+
+#if defined(OS_LINUX)
+// TODO(myhuang): This is a quick hack for testing purpose. We should implement
+// PrintViewManager and other related classes later on Linux.
+namespace printing {
+
+void PrintViewManager::DidPrintPage(
+    const ViewHostMsg_DidPrintPage_Params& params) {
+  base::SharedMemory shared_buf(params.metafile_data_handle, true);
+  if (!shared_buf.Map(params.data_size)) {
+    NOTREACHED() << "couldn't map";
+    owner_.Stop();
+    return;
+  }
+
+  // The only format we can use now is PDF since Cairo needs to create a
+  // temporary file for a PostScript surface. We do not allow disk I/O in the
+  // renderer.
+  scoped_ptr<NativeMetafile> metafile(
+      new NativeMetafile(printing::NativeMetafile::PDF));
+
+  if (!metafile->Init(shared_buf.memory(), params.data_size)) {
+    NOTREACHED() << "Invalid metafile header";
+    shared_buf.Unmap();
+    owner_.Stop();
+    return;
+  }
+
+  // Save the PDF file to default download location.
+  // NOTE: Existing file will be overwritten.
+  FilePath default_save_path;
+  if (!PathService::Get(chrome::DIR_DEFAULT_DOWNLOADS, &default_save_path)) {
+    NOTREACHED();
+  }
+  FilePath save_filename =
+      default_save_path.Append(FilePath("chromium_printing_test.pdf"));
+  metafile->SaveTo(save_filename);
+  shared_buf.Unmap();
+}
+
+}  // namespace printing
+
+#endif