pdf: Move PepperPDFHost into the pdf component.

Move PepperPDFHost out of //chrome into the pdf component at //components/pdf.
With this change, the IPC messages in the component is used only by the
component itself, and nothing outside of the component uses these IPC messages
anymore.

BUG=401242
R=raymes@chromium.org, senorblanco@chromium.org, sky@chromium.org, thestig@chromium.org

Review URL: https://codereview.chromium.org/505243003

Cr-Commit-Position: refs/heads/master@{#292416}

chrome/chrome_renderer.gypi

@@ -202,8 +202,6 @@
       'renderer/pepper/pepper_flash_renderer_host.h',
       'renderer/pepper/pepper_helper.cc',
       'renderer/pepper/pepper_helper.h',
-      'renderer/pepper/pepper_pdf_host.cc',
-      'renderer/pepper/pepper_pdf_host.h',
       'renderer/pepper/pepper_shared_memory_message_filter.cc',
       'renderer/pepper/pepper_shared_memory_message_filter.h',
       'renderer/pepper/pepper_uma_host.cc',

chrome/renderer/DEPS

@@ -12,7 +12,6 @@ include_rules = [
   "+components/nacl/common",
   "+components/nacl/renderer",
   "+components/password_manager/content/renderer",
-  "+components/pdf/common",
   "+components/pdf/renderer",
   "+components/plugins/renderer",
   "+components/signin/core/common",

chrome/renderer/pepper/chrome_pdf_print_client.cc

@@ -44,9 +44,12 @@ bool ChromePDFPrintClient::IsPrintingEnabled(PP_Instance instance_id) {
   return helper && helper->IsPrintingEnabled();
 }
 
-void ChromePDFPrintClient::Print(PP_Instance instance_id) {
+bool ChromePDFPrintClient::Print(PP_Instance instance_id) {
   blink::WebElement element = GetWebElement(instance_id);
   printing::PrintWebViewHelper* helper = GetPrintWebViewHelper(element);
-  if (helper)
+  if (helper) {
     helper->PrintNode(element);
+    return true;
+  }
+  return false;
 }

chrome/renderer/pepper/chrome_pdf_print_client.h

@@ -16,7 +16,7 @@ class ChromePDFPrintClient : public pdf::PPB_PDF_Impl::PrintClient {
  private:
   // pdf::PPB_PDF_Impl::PrintClient:
   virtual bool IsPrintingEnabled(PP_Instance instance_id) OVERRIDE;
-  virtual void Print(PP_Instance instance_id) OVERRIDE;
+  virtual bool Print(PP_Instance instance_id) OVERRIDE;
 
   DISALLOW_COPY_AND_ASSIGN(ChromePDFPrintClient);
 };

chrome/renderer/pepper/chrome_renderer_pepper_host_factory.cc

@@ -10,13 +10,13 @@
 #include "chrome/renderer/pepper/pepper_flash_fullscreen_host.h"
 #include "chrome/renderer/pepper/pepper_flash_menu_host.h"
 #include "chrome/renderer/pepper/pepper_flash_renderer_host.h"
-#include "chrome/renderer/pepper/pepper_pdf_host.h"
 #include "chrome/renderer/pepper/pepper_uma_host.h"
+#include "components/pdf/renderer/pepper_pdf_host.h"
 #include "content/public/renderer/renderer_ppapi_host.h"
 #include "ppapi/host/ppapi_host.h"
 #include "ppapi/host/resource_host.h"
-#include "ppapi/proxy/ppapi_messages.h"
 #include "ppapi/proxy/ppapi_message_utils.h"
+#include "ppapi/proxy/ppapi_messages.h"
 #include "ppapi/shared_impl/ppapi_permissions.h"
 
 using ppapi::host::ResourceHost;
@@ -90,7 +90,7 @@ scoped_ptr<ResourceHost> ChromeRendererPepperHostFactory::CreateResourceHost(
     switch (message.type()) {
       case PpapiHostMsg_PDF_Create::ID: {
         return scoped_ptr<ResourceHost>(
-            new PepperPDFHost(host_, instance, params.pp_resource()));
+            new pdf::PepperPDFHost(host_, instance, params.pp_resource()));
       }
     }
   }

components/pdf.gypi

@@ -46,6 +46,8 @@
       'pdf_common',
     ],
     'sources': [
+      'pdf/renderer/pepper_pdf_host.cc',
+      'pdf/renderer/pepper_pdf_host.h',
       'pdf/renderer/ppb_pdf_impl.cc',
       'pdf/renderer/ppb_pdf_impl.h',
     ],

components/pdf/renderer/BUILD.gn

@@ -6,6 +6,8 @@ import("//build/config/features.gni")
 
 static_library("renderer") {
   sources = [
+    "pepper_pdf_host.cc",
+    "pepper_pdf_host.h",
     "ppb_pdf_impl.cc",
     "ppb_pdf_impl.h",
   ]

components/pdf/renderer/DEPS

+include_rules = [
+  "+skia/ext",
+  "+ui/gfx",
+]

chrome/renderer/pepper/pepper_pdf_host.cc → components/pdf/renderer/pepper_pdf_host.cc

-// Copyright (c) 2013 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/pepper_pdf_host.h"
+#include "components/pdf/renderer/pepper_pdf_host.h"
 
 #include "base/strings/utf_string_conversions.h"
-#include "chrome/renderer/printing/print_web_view_helper.h"
 #include "components/pdf/common/pdf_messages.h"
+#include "components/pdf/renderer/ppb_pdf_impl.h"
 #include "content/app/resources/grit/content_resources.h"
 #include "content/app/strings/grit/content_strings.h"
 #include "content/public/common/referrer.h"
@@ -101,6 +101,8 @@ const ResourceImageInfo kResourceImageMap[] = {
 
 }  // namespace
 
+namespace pdf {
+
 PepperPDFHost::PepperPDFHost(content::RendererPpapiHost* host,
                              PP_Instance instance,
                              PP_Resource resource)
@@ -215,24 +217,8 @@ int32_t PepperPDFHost::OnHostMsgHasUnsupportedFeature(
 
 int32_t PepperPDFHost::OnHostMsgPrint(
     ppapi::host::HostMessageContext* context) {
-#if defined(ENABLE_FULL_PRINTING)
-  content::PepperPluginInstance* instance =
-      host_->GetPluginInstance(pp_instance());
-  if (!instance)
-    return PP_ERROR_FAILED;
-
-  blink::WebElement element = instance->GetContainer()->element();
-  blink::WebView* view = element.document().frame()->view();
-  content::RenderView* render_view = content::RenderView::FromWebView(view);
-
-  using printing::PrintWebViewHelper;
-  PrintWebViewHelper* print_view_helper = PrintWebViewHelper::Get(render_view);
-  if (print_view_helper) {
-    print_view_helper->PrintNode(element);
-    return PP_OK;
-  }
-#endif
-  return PP_ERROR_FAILED;
+  return PPB_PDF_Impl::InvokePrintingForInstance(pp_instance()) ? PP_OK :
+      PP_ERROR_FAILED;
 }
 
 int32_t PepperPDFHost::OnHostMsgSaveAs(
@@ -390,3 +376,5 @@ bool PepperPDFHost::CreateImageData(
 
   return true;
 }
+
+}  // namespace pdf

chrome/renderer/pepper/pepper_pdf_host.h → components/pdf/renderer/pepper_pdf_host.h

-// Copyright (c) 2013 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.
 
-#ifndef CHROME_RENDERER_PEPPER_PEPPER_PDF_HOST_H_
-#define CHROME_RENDERER_PEPPER_PEPPER_PDF_HOST_H_
+#ifndef COMPONENTS_PDF_RENDERER_PEPPER_PDF_HOST_H_
+#define COMPONENTS_PDF_RENDERER_PEPPER_PDF_HOST_H_
 
 #include <string>
 
@@ -34,6 +34,8 @@ struct HostMessageContext;
 }
 }
 
+namespace pdf {
+
 class PepperPDFHost : public ppapi::host::ResourceHost {
  public:
   PepperPDFHost(content::RendererPpapiHost* host,
@@ -82,4 +84,6 @@ class PepperPDFHost : public ppapi::host::ResourceHost {
   DISALLOW_COPY_AND_ASSIGN(PepperPDFHost);
 };
 
-#endif  // CHROME_RENDERER_PEPPER_PEPPER_PDF_HOST_H_
+}  // namespace pdf
+
+#endif  // COMPONENTS_PDF_RENDERER_PEPPER_PDF_HOST_H_

components/pdf/renderer/ppb_pdf_impl.cc

@@ -322,6 +322,10 @@ void SaveAs(PP_Instance instance_id) {
       new PDFHostMsg_PDFSaveURLAs(render_view->GetRoutingID(), url, referrer));
 }
 
+void Print(PP_Instance instance) {
+  PPB_PDF_Impl::InvokePrintingForInstance(instance);
+}
+
 PP_Bool IsFeatureEnabled(PP_Instance instance, PP_PDFFeature feature) {
   switch (feature) {
     case PP_PDFFEATURE_HIDPI:
@@ -416,7 +420,7 @@ const PPB_PDF ppb_pdf = {                      //
     &UserMetricsRecordAction,                  //
     &HasUnsupportedFeature,                    //
     &SaveAs,                                   //
-    &PPB_PDF_Impl::InvokePrintingForInstance,  //
+    &Print,                                    //
     &IsFeatureEnabled,                         //
     &GetResourceImageForScale,                 //
     &ModalPromptForPassword,                   //
@@ -433,9 +437,8 @@ const PPB_PDF* PPB_PDF_Impl::GetInterface() {
 }
 
 // static
-void PPB_PDF_Impl::InvokePrintingForInstance(PP_Instance instance_id) {
-  if (g_print_client)
-    g_print_client->Print(instance_id);
+bool PPB_PDF_Impl::InvokePrintingForInstance(PP_Instance instance_id) {
+  return g_print_client ? g_print_client->Print(instance_id) : false;
 }
 
 void PPB_PDF_Impl::SetPrintClient(PPB_PDF_Impl::PrintClient* client) {

components/pdf/renderer/ppb_pdf_impl.h

@@ -22,8 +22,8 @@ class PPB_PDF_Impl {
     virtual bool IsPrintingEnabled(PP_Instance instance_id) = 0;
 
     // Invokes the "Print" command for the plugin instance identified by
-    // |instance_id|.
-    virtual void Print(PP_Instance instance_id) = 0;
+    // |instance_id|. Returns whether the "Print" command was issued or not.
+    virtual bool Print(PP_Instance instance_id) = 0;
   };
 
   // Returns a pointer to the interface implementing PPB_PDF that is exposed
@@ -31,8 +31,9 @@ class PPB_PDF_Impl {
   static const PPB_PDF* GetInterface();
 
   // Invokes the "Print" command for the given instance as if the user right
-  // clicked on it and selected "Print".
-  static void InvokePrintingForInstance(PP_Instance instance);
+  // clicked on it and selected "Print". Returns if the "Print" command was
+  // issued or not.
+  static bool InvokePrintingForInstance(PP_Instance instance);
 
   // The caller retains the ownership of |print_client|. The client is
   // allowed to be set only once, and when set, the client must outlive the