pdf: Create a separate component for using the pdf pepper plugin.

components/pdf/renderer/ppb_pdf_impl.cc

Index: components/pdf/renderer/ppb_pdf_impl.cc
diff --git a/chrome/renderer/pepper/ppb_pdf_impl.cc b/components/pdf/renderer/ppb_pdf_impl.cc
similarity index 89%
rename from chrome/renderer/pepper/ppb_pdf_impl.cc
rename to components/pdf/renderer/ppb_pdf_impl.cc
index 16317adf2e728d154e580f2e3bfacaf11ca4c252..f6300f8ba624e9acafb95c52bc84e9cf4b5f3cc1 100644
--- a/chrome/renderer/pepper/ppb_pdf_impl.cc
+++ b/components/pdf/renderer/ppb_pdf_impl.cc
@@ -1,16 +1,15 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Copyright 2014 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.
 
-#include "chrome/renderer/pepper/ppb_pdf_impl.h"
+#include "components/pdf/renderer/ppb_pdf_impl.h"
 
 #include "base/files/scoped_file.h"
 #include "base/metrics/histogram.h"
 #include "base/numerics/safe_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #include "build/build_config.h"
-#include "chrome/common/render_messages.h"
-#include "chrome/renderer/printing/print_web_view_helper.h"
+#include "components/pdf/common/pdf_messages.h"
 #include "content/app/strings/grit/content_strings.h"

[jam, 2014/08/22 00:44:59]

why is this include there?

 #include "content/public/common/child_process_sandbox_support_linux.h"
 #include "content/public/common/referrer.h"
@@ -35,8 +34,11 @@
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/resource/resource_bundle.h"
 
+namespace pdf {
 namespace {
 
+PPB_PDF_Impl::PrintDelegate* print_delegate = NULL;
+
 #if defined(OS_POSIX) && !defined(OS_MACOSX) && !defined(OS_ANDROID)
 class PrivateFontFile : public ppapi::Resource {
  public:
@@ -119,37 +121,6 @@ static const ResourceImageInfo kResourceImageMap[] = {
     {PP_RESOURCEIMAGE_PDF_PAGE_DROPSHADOW, IDR_PDF_PAGE_DROPSHADOW},
     {PP_RESOURCEIMAGE_PDF_PAN_SCROLL_ICON, IDR_PAN_SCROLL_ICON}, };
 
-#if defined(ENABLE_FULL_PRINTING)
-
-blink::WebElement GetWebElement(PP_Instance instance_id) {
-  content::PepperPluginInstance* instance =
-      content::PepperPluginInstance::Get(instance_id);
-  if (!instance)
-    return blink::WebElement();
-  return instance->GetContainer()->element();
-}
-
-printing::PrintWebViewHelper* GetPrintWebViewHelper(
-    const blink::WebElement& element) {
-  if (element.isNull())
-    return NULL;
-  blink::WebView* view = element.document().frame()->view();
-  content::RenderView* render_view = content::RenderView::FromWebView(view);
-  return printing::PrintWebViewHelper::Get(render_view);
-}
-
-bool IsPrintingEnabled(PP_Instance instance_id) {
-  blink::WebElement element = GetWebElement(instance_id);
-  printing::PrintWebViewHelper* helper = GetPrintWebViewHelper(element);
-  return helper && helper->IsPrintingEnabled();
-}
-
-#else  // ENABLE_FULL_PRINTING
-
-bool IsPrintingEnabled(PP_Instance instance_id) { return false; }
-
-#endif  // ENABLE_FULL_PRINTING
-
 PP_Var GetLocalizedString(PP_Instance instance_id,
                           PP_ResourceString string_id) {
   content::PepperPluginInstance* instance =
@@ -301,7 +272,7 @@ void SetContentRestriction(PP_Instance instance_id, int restrictions) {
   if (!instance)
     return;
   instance->GetRenderView()->Send(
-      new ChromeViewHostMsg_PDFUpdateContentRestrictions(
+      new PDFHostMsg_PDFUpdateContentRestrictions(
           instance->GetRenderView()->GetRoutingID(), restrictions));
 }
 
@@ -329,7 +300,7 @@ void HasUnsupportedFeature(PP_Instance instance_id) {
   blink::WebView* view =
       instance->GetContainer()->element().document().frame()->view();
   content::RenderView* render_view = content::RenderView::FromWebView(view);
-  render_view->Send(new ChromeViewHostMsg_PDFHasUnsupportedFeature(
+  render_view->Send(new PDFHostMsg_PDFHasUnsupportedFeature(
       render_view->GetRoutingID()));
 }
 
@@ -345,7 +316,7 @@ void SaveAs(PP_Instance instance_id) {
       render_view->GetWebView()->mainFrame()->toWebLocalFrame();
   content::Referrer referrer(frame->document().url(),
                              frame->document().referrerPolicy());
-  render_view->Send(new ChromeViewHostMsg_PDFSaveURLAs(
+  render_view->Send(new PDFHostMsg_PDFSaveURLAs(
       render_view->GetRoutingID(), url, referrer));
 }
 
@@ -354,7 +325,8 @@ PP_Bool IsFeatureEnabled(PP_Instance instance, PP_PDFFeature feature) {
     case PP_PDFFEATURE_HIDPI:
       return PP_TRUE;
     case PP_PDFFEATURE_PRINTING:
-      return IsPrintingEnabled(instance) ? PP_TRUE : PP_FALSE;
+      return (print_delegate && print_delegate->IsPrintingEnabled(instance))
+          ? PP_TRUE : PP_FALSE;
   }
   return PP_FALSE;
 }
@@ -402,7 +374,7 @@ PP_Var ModalPromptForPassword(PP_Instance instance_id, PP_Var message) {
   scoped_refptr<ppapi::StringVar> message_string(
       ppapi::StringVar::FromPPVar(message));
 
-  IPC::SyncMessage* msg = new ChromeViewHostMsg_PDFModalPromptForPassword(
+  IPC::SyncMessage* msg = new PDFHostMsg_PDFModalPromptForPassword(
       instance->GetRenderView()->GetRoutingID(),
       message_string->value(),
       &actual_value);
@@ -455,10 +427,13 @@ const PPB_PDF* PPB_PDF_Impl::GetInterface() { return &ppb_pdf; }
 
 // static
 void PPB_PDF_Impl::InvokePrintingForInstance(PP_Instance instance_id) {
-#if defined(ENABLE_FULL_PRINTING)
-  blink::WebElement element = GetWebElement(instance_id);
-  printing::PrintWebViewHelper* helper = GetPrintWebViewHelper(element);
-  if (helper)
-    helper->PrintNode(element);
-#endif  // ENABLE_FULL_PRINTING
+  if (print_delegate)
+    print_delegate->Print(instance_id);
+}
+
+void PPB_PDF_Impl::SetPrintDelegate(PPB_PDF_Impl::PrintDelegate* delegate) {
+  CHECK(!print_delegate) << "There should only be a single PrintDelegate.";
+  print_delegate = delegate;
 }
+
+}  // namespace pdf