Moved AlphaBlend rasterization to renderer process like it was before 152681.

chrome/browser/printing/print_view_manager.cc

Index: chrome/browser/printing/print_view_manager.cc
diff --git a/chrome/browser/printing/print_view_manager.cc b/chrome/browser/printing/print_view_manager.cc
index cad5695004979547065700eee863ec5f7a757cba..410c1f44fd7f84372a108dacc2618ad24519c37c 100644
--- a/chrome/browser/printing/print_view_manager.cc
+++ b/chrome/browser/printing/print_view_manager.cc
@@ -274,14 +274,7 @@ void PrintViewManager::OnDidPrintPage(
       web_contents()->Stop();
       return;
     }
-  } else if (!print_job_->settings().supports_alpha_blend() &&
-             metafile->IsAlphaBlendUsed()) {
-    scoped_ptr<NativeMetafile> raster_metafile(
-        metafile->RasterizeAlphaBlend());
-    if (raster_metafile.get())
-      metafile.swap(raster_metafile);
   }
-
 #endif
 
   // Update the rendered document. It will send notifications to the listener.