pdf: Move the string/image resources for the pdf plugin.

Move the resources for the pdf plugin out of //content into //components. Also,
reuse the same code for getting the resource from PepperPDFHost and
PPB_PDF_Impl.

BUG=401242
R=blundell@chromium.org, jam@chromium.org, raymes@chromium.org

Review URL: https://codereview.chromium.org/506473003

Cr-Commit-Position: refs/heads/master@{#292897}

7 files changed, 149 insertions, 186 deletions

diff --git a/components/pdf/DEPS b/components/pdf/DEPS
index 745ee50..d0c3033 100644
--- a/components/pdf/DEPS
+++ b/components/pdf/DEPS
@@ -1,7 +1,5 @@
 include_rules = [
-  "+content/app",
   "+content/public",
-  "+grit/webkit_resources.h",
   "+ipc",
   "+ppapi",
   "+third_party/skia/include",
diff --git a/components/pdf/renderer/BUILD.gn b/components/pdf/renderer/BUILD.gn
index f072d26..3e0fbc7 100644
--- a/components/pdf/renderer/BUILD.gn
+++ b/components/pdf/renderer/BUILD.gn
@@ -8,6 +8,8 @@ static_library("renderer") {
   sources = [
     "pepper_pdf_host.cc",
     "pepper_pdf_host.h",
+    "pdf_resource_util.cc",
+    "pdf_resource_util.h",
     "ppb_pdf_impl.cc",
     "ppb_pdf_impl.h",
   ]
@@ -15,6 +17,8 @@ static_library("renderer") {
   deps = [
     "//base",
     "//components/pdf/common",
+    "//components/resources:components_resources",
+    "//components/strings",
     "//content/public/renderer",
     "//ppapi:ppapi_shared",
     "//third_party/icu",
diff --git a/components/pdf/renderer/DEPS b/components/pdf/renderer/DEPS
index b4762c10..ee0d845 100644
--- a/components/pdf/renderer/DEPS
+++ b/components/pdf/renderer/DEPS
@@ -1,4 +1,6 @@
 include_rules = [
+  "+components/strings/grit/components_strings.h",
+  "+grit/component_scaled_resources.h",
   "+skia/ext",
   "+ui/gfx",
 ]
diff --git a/components/pdf/renderer/pdf_resource_util.cc b/components/pdf/renderer/pdf_resource_util.cc
new file mode 100644
index 0000000..4a3a9fd
--- /dev/null
+++ b/components/pdf/renderer/pdf_resource_util.cc
@@ -0,0 +1,113 @@
+// 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 "components/pdf/renderer/pdf_resource_util.h"
+
+#include "base/strings/utf_string_conversions.h"
+#include "components/strings/grit/components_strings.h"
+#include "grit/component_scaled_resources.h"
+#include "ui/base/l10n/l10n_util.h"
+#include "ui/base/resource/resource_bundle.h"
+
+namespace {
+
+struct ResourceImageInfo {
+  PP_ResourceImage pp_id;
+  int res_id;
+};
+
+static const ResourceImageInfo kResourceImageMap[] = {
+    {PP_RESOURCEIMAGE_PDF_BUTTON_FTP, IDR_PDF_BUTTON_FTP},
+    {PP_RESOURCEIMAGE_PDF_BUTTON_FTP_HOVER, IDR_PDF_BUTTON_FTP_HOVER},
+    {PP_RESOURCEIMAGE_PDF_BUTTON_FTP_PRESSED, IDR_PDF_BUTTON_FTP_PRESSED},
+    {PP_RESOURCEIMAGE_PDF_BUTTON_FTW, IDR_PDF_BUTTON_FTW},
+    {PP_RESOURCEIMAGE_PDF_BUTTON_FTW_HOVER, IDR_PDF_BUTTON_FTW_HOVER},
+    {PP_RESOURCEIMAGE_PDF_BUTTON_FTW_PRESSED, IDR_PDF_BUTTON_FTW_PRESSED},
+    {PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMIN_END, IDR_PDF_BUTTON_ZOOMIN_END},
+    {PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMIN_END_HOVER,
+     IDR_PDF_BUTTON_ZOOMIN_END_HOVER},
+    {PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMIN_END_PRESSED,
+     IDR_PDF_BUTTON_ZOOMIN_END_PRESSED},
+    {PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMIN, IDR_PDF_BUTTON_ZOOMIN},
+    {PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMIN_HOVER, IDR_PDF_BUTTON_ZOOMIN_HOVER},
+    {PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMIN_PRESSED, IDR_PDF_BUTTON_ZOOMIN_PRESSED},
+    {PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMOUT, IDR_PDF_BUTTON_ZOOMOUT},
+    {PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMOUT_HOVER, IDR_PDF_BUTTON_ZOOMOUT_HOVER},
+    {PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMOUT_PRESSED,
+     IDR_PDF_BUTTON_ZOOMOUT_PRESSED},
+    {PP_RESOURCEIMAGE_PDF_BUTTON_SAVE, IDR_PDF_BUTTON_SAVE},
+    {PP_RESOURCEIMAGE_PDF_BUTTON_SAVE_HOVER, IDR_PDF_BUTTON_SAVE_HOVER},
+    {PP_RESOURCEIMAGE_PDF_BUTTON_SAVE_PRESSED, IDR_PDF_BUTTON_SAVE_PRESSED},
+    {PP_RESOURCEIMAGE_PDF_BUTTON_PRINT, IDR_PDF_BUTTON_PRINT},
+    {PP_RESOURCEIMAGE_PDF_BUTTON_PRINT_HOVER, IDR_PDF_BUTTON_PRINT_HOVER},
+    {PP_RESOURCEIMAGE_PDF_BUTTON_PRINT_PRESSED, IDR_PDF_BUTTON_PRINT_PRESSED},
+    {PP_RESOURCEIMAGE_PDF_BUTTON_PRINT_DISABLED, IDR_PDF_BUTTON_PRINT_DISABLED},
+    {PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_0, IDR_PDF_THUMBNAIL_0},
+    {PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_1, IDR_PDF_THUMBNAIL_1},
+    {PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_2, IDR_PDF_THUMBNAIL_2},
+    {PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_3, IDR_PDF_THUMBNAIL_3},
+    {PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_4, IDR_PDF_THUMBNAIL_4},
+    {PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_5, IDR_PDF_THUMBNAIL_5},
+    {PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_6, IDR_PDF_THUMBNAIL_6},
+    {PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_7, IDR_PDF_THUMBNAIL_7},
+    {PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_8, IDR_PDF_THUMBNAIL_8},
+    {PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_9, IDR_PDF_THUMBNAIL_9},
+    {PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_NUM_BACKGROUND,
+     IDR_PDF_THUMBNAIL_NUM_BACKGROUND},
+    {PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_0, IDR_PDF_PROGRESS_BAR_0},
+    {PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_1, IDR_PDF_PROGRESS_BAR_1},
+    {PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_2, IDR_PDF_PROGRESS_BAR_2},
+    {PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_3, IDR_PDF_PROGRESS_BAR_3},
+    {PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_4, IDR_PDF_PROGRESS_BAR_4},
+    {PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_5, IDR_PDF_PROGRESS_BAR_5},
+    {PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_6, IDR_PDF_PROGRESS_BAR_6},
+    {PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_7, IDR_PDF_PROGRESS_BAR_7},
+    {PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_8, IDR_PDF_PROGRESS_BAR_8},
+    {PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_BACKGROUND,
+     IDR_PDF_PROGRESS_BAR_BACKGROUND},
+    {PP_RESOURCEIMAGE_PDF_PAGE_INDICATOR_BACKGROUND,
+     IDR_PDF_PAGE_INDICATOR_BACKGROUND},
+    {PP_RESOURCEIMAGE_PDF_PAGE_DROPSHADOW, IDR_PDF_PAGE_DROPSHADOW},
+    {PP_RESOURCEIMAGE_PDF_PAN_SCROLL_ICON, IDR_PDF_PAN_SCROLL_ICON},
+};
+
+}  // namespace
+
+namespace pdf {
+
+gfx::ImageSkia* GetImageResource(PP_ResourceImage image_id) {
+  int resource_id = 0;
+  for (size_t i = 0; i < arraysize(kResourceImageMap); ++i) {
+    if (kResourceImageMap[i].pp_id == image_id) {
+      resource_id = kResourceImageMap[i].res_id;
+      break;
+    }
+  }
+
+  return resource_id ? ResourceBundle::GetSharedInstance().GetImageSkiaNamed(
+                           resource_id)
+                     : NULL;
+}
+
+std::string GetStringResource(PP_ResourceString string_id) {
+  int resource_id = 0;
+  switch (string_id) {
+    case PP_RESOURCESTRING_PDFGETPASSWORD:
+      resource_id = IDS_PDF_NEED_PASSWORD;
+      break;
+    case PP_RESOURCESTRING_PDFLOADING:
+      resource_id = IDS_PDF_PAGE_LOADING;
+      break;
+    case PP_RESOURCESTRING_PDFLOAD_FAILED:
+      resource_id = IDS_PDF_PAGE_LOAD_FAILED;
+      break;
+    case PP_RESOURCESTRING_PDFPROGRESSLOADING:
+      resource_id = IDS_PDF_PROGRESS_LOADING;
+      break;
+  }
+
+  return base::UTF16ToUTF8(l10n_util::GetStringUTF16(resource_id));
+}
+
+}  // namespace pdf
diff --git a/components/pdf/renderer/pdf_resource_util.h b/components/pdf/renderer/pdf_resource_util.h
new file mode 100644
index 0000000..aab8a1c
--- /dev/null
+++ b/components/pdf/renderer/pdf_resource_util.h
@@ -0,0 +1,24 @@
+// 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 COMPONENTS_PDF_RENDERER_PDF_RESOURCE_UTIL_H_
+#define COMPONENTS_PDF_RENDERER_PDF_RESOURCE_UTIL_H_
+
+#include <string>
+
+#include "ppapi/c/private/ppb_pdf.h"
+
+namespace gfx {
+class ImageSkia;
+}
+
+namespace pdf {
+
+gfx::ImageSkia* GetImageResource(PP_ResourceImage image_id);
+
+std::string GetStringResource(PP_ResourceString string_id);
+
+}  // namespace pdf
+
+#endif  // COMPONENTS_PDF_RENDERER_PDF_RESOURCE_UTIL_H_
diff --git a/components/pdf/renderer/pepper_pdf_host.cc b/components/pdf/renderer/pepper_pdf_host.cc
index c720ca8..301e56f 100644
--- a/components/pdf/renderer/pepper_pdf_host.cc
+++ b/components/pdf/renderer/pepper_pdf_host.cc
@@ -4,11 +4,9 @@
 
 #include "components/pdf/renderer/pepper_pdf_host.h"
 
-#include "base/strings/utf_string_conversions.h"
 #include "components/pdf/common/pdf_messages.h"
+#include "components/pdf/renderer/pdf_resource_util.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"
 #include "content/public/renderer/pepper_plugin_instance.h"
 #include "content/public/renderer/render_thread.h"
@@ -31,76 +29,11 @@
 #include "third_party/WebKit/public/web/WebPluginContainer.h"
 #include "third_party/WebKit/public/web/WebView.h"
 #include "third_party/skia/include/core/SkBitmap.h"
-#include "ui/base/l10n/l10n_util.h"
 #include "ui/base/layout.h"
-#include "ui/base/resource/resource_bundle.h"
 #include "ui/gfx/image/image_skia.h"
 #include "ui/gfx/image/image_skia_rep.h"
 #include "ui/gfx/point.h"
 
-namespace {
-
-struct ResourceImageInfo {
-  PP_ResourceImage pp_id;
-  int res_id;
-};
-
-const ResourceImageInfo kResourceImageMap[] = {
-    {PP_RESOURCEIMAGE_PDF_BUTTON_FTP, IDR_PDF_BUTTON_FTP},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_FTP_HOVER, IDR_PDF_BUTTON_FTP_HOVER},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_FTP_PRESSED, IDR_PDF_BUTTON_FTP_PRESSED},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_FTW, IDR_PDF_BUTTON_FTW},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_FTW_HOVER, IDR_PDF_BUTTON_FTW_HOVER},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_FTW_PRESSED, IDR_PDF_BUTTON_FTW_PRESSED},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMIN_END, IDR_PDF_BUTTON_ZOOMIN_END},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMIN_END_HOVER,
-     IDR_PDF_BUTTON_ZOOMIN_END_HOVER},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMIN_END_PRESSED,
-     IDR_PDF_BUTTON_ZOOMIN_END_PRESSED},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMIN, IDR_PDF_BUTTON_ZOOMIN},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMIN_HOVER, IDR_PDF_BUTTON_ZOOMIN_HOVER},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMIN_PRESSED, IDR_PDF_BUTTON_ZOOMIN_PRESSED},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMOUT, IDR_PDF_BUTTON_ZOOMOUT},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMOUT_HOVER, IDR_PDF_BUTTON_ZOOMOUT_HOVER},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMOUT_PRESSED,
-     IDR_PDF_BUTTON_ZOOMOUT_PRESSED},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_SAVE, IDR_PDF_BUTTON_SAVE},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_SAVE_HOVER, IDR_PDF_BUTTON_SAVE_HOVER},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_SAVE_PRESSED, IDR_PDF_BUTTON_SAVE_PRESSED},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_PRINT, IDR_PDF_BUTTON_PRINT},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_PRINT_HOVER, IDR_PDF_BUTTON_PRINT_HOVER},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_PRINT_PRESSED, IDR_PDF_BUTTON_PRINT_PRESSED},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_PRINT_DISABLED, IDR_PDF_BUTTON_PRINT_DISABLED},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_0, IDR_PDF_THUMBNAIL_0},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_1, IDR_PDF_THUMBNAIL_1},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_2, IDR_PDF_THUMBNAIL_2},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_3, IDR_PDF_THUMBNAIL_3},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_4, IDR_PDF_THUMBNAIL_4},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_5, IDR_PDF_THUMBNAIL_5},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_6, IDR_PDF_THUMBNAIL_6},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_7, IDR_PDF_THUMBNAIL_7},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_8, IDR_PDF_THUMBNAIL_8},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_9, IDR_PDF_THUMBNAIL_9},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_NUM_BACKGROUND,
-     IDR_PDF_THUMBNAIL_NUM_BACKGROUND},
-    {PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_0, IDR_PDF_PROGRESS_BAR_0},
-    {PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_1, IDR_PDF_PROGRESS_BAR_1},
-    {PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_2, IDR_PDF_PROGRESS_BAR_2},
-    {PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_3, IDR_PDF_PROGRESS_BAR_3},
-    {PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_4, IDR_PDF_PROGRESS_BAR_4},
-    {PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_5, IDR_PDF_PROGRESS_BAR_5},
-    {PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_6, IDR_PDF_PROGRESS_BAR_6},
-    {PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_7, IDR_PDF_PROGRESS_BAR_7},
-    {PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_8, IDR_PDF_PROGRESS_BAR_8},
-    {PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_BACKGROUND,
-     IDR_PDF_PROGRESS_BAR_BACKGROUND},
-    {PP_RESOURCEIMAGE_PDF_PAGE_INDICATOR_BACKGROUND,
-     IDR_PDF_PAGE_INDICATOR_BACKGROUND},
-    {PP_RESOURCEIMAGE_PDF_PAGE_DROPSHADOW, IDR_PDF_PAGE_DROPSHADOW},
-    {PP_RESOURCEIMAGE_PDF_PAN_SCROLL_ICON, IDR_PAN_SCROLL_ICON}, };
-
-}  // namespace
-
 namespace pdf {
 
 PepperPDFHost::PepperPDFHost(content::RendererPpapiHost* host,
@@ -141,20 +74,7 @@ int32_t PepperPDFHost::OnResourceMessageReceived(
 int32_t PepperPDFHost::OnHostMsgGetLocalizedString(
     ppapi::host::HostMessageContext* context,
     PP_ResourceString string_id) {
-  std::string rv;
-  if (string_id == PP_RESOURCESTRING_PDFGETPASSWORD) {
-    rv = base::UTF16ToUTF8(l10n_util::GetStringUTF16(IDS_PDF_NEED_PASSWORD));
-  } else if (string_id == PP_RESOURCESTRING_PDFLOADING) {
-    rv = base::UTF16ToUTF8(l10n_util::GetStringUTF16(IDS_PDF_PAGE_LOADING));
-  } else if (string_id == PP_RESOURCESTRING_PDFLOAD_FAILED) {
-    rv = base::UTF16ToUTF8(l10n_util::GetStringUTF16(IDS_PDF_PAGE_LOAD_FAILED));
-  } else if (string_id == PP_RESOURCESTRING_PDFPROGRESSLOADING) {
-    rv = base::UTF16ToUTF8(l10n_util::GetStringUTF16(IDS_PDF_PROGRESS_LOADING));
-  } else {
-    NOTREACHED();
-    return PP_ERROR_FAILED;
-  }
-
+  std::string rv = GetStringResource(string_id);
   context->reply_msg = PpapiPluginMsg_PDF_GetLocalizedStringReply(rv);
   return PP_OK;
 }
@@ -242,18 +162,7 @@ int32_t PepperPDFHost::OnHostMsgGetResourceImage(
     ppapi::host::HostMessageContext* context,
     PP_ResourceImage image_id,
     float scale) {
-  int res_id = 0;
-  for (size_t i = 0; i < arraysize(kResourceImageMap); ++i) {
-    if (kResourceImageMap[i].pp_id == image_id) {
-      res_id = kResourceImageMap[i].res_id;
-      break;
-    }
-  }
-  if (res_id == 0)
-    return PP_ERROR_FAILED;
-
-  gfx::ImageSkia* res_image_skia =
-      ResourceBundle::GetSharedInstance().GetImageSkiaNamed(res_id);
+  gfx::ImageSkia* res_image_skia = GetImageResource(image_id);
 
   if (!res_image_skia)
     return PP_ERROR_FAILED;
diff --git a/components/pdf/renderer/ppb_pdf_impl.cc b/components/pdf/renderer/ppb_pdf_impl.cc
index a26c740..abfc7f8 100644
--- a/components/pdf/renderer/ppb_pdf_impl.cc
+++ b/components/pdf/renderer/ppb_pdf_impl.cc
@@ -7,11 +7,9 @@
 #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 "components/pdf/common/pdf_messages.h"
-#include "content/app/resources/grit/content_resources.h"
-#include "content/app/strings/grit/content_strings.h"
+#include "components/pdf/renderer/pdf_resource_util.h"
 #include "content/public/common/child_process_sandbox_support_linux.h"
 #include "content/public/common/referrer.h"
 #include "content/public/renderer/pepper_plugin_instance.h"
@@ -31,8 +29,6 @@
 #include "third_party/WebKit/public/web/WebView.h"
 #include "third_party/icu/source/i18n/unicode/usearch.h"
 #include "third_party/skia/include/core/SkBitmap.h"
-#include "ui/base/l10n/l10n_util.h"
-#include "ui/base/resource/resource_bundle.h"
 
 namespace pdf {
 namespace {
@@ -64,66 +60,6 @@ class PrivateFontFile : public ppapi::Resource {
 };
 #endif
 
-struct ResourceImageInfo {
-  PP_ResourceImage pp_id;
-  int res_id;
-};
-
-static const ResourceImageInfo kResourceImageMap[] = {
-    {PP_RESOURCEIMAGE_PDF_BUTTON_FTP, IDR_PDF_BUTTON_FTP},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_FTP_HOVER, IDR_PDF_BUTTON_FTP_HOVER},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_FTP_PRESSED, IDR_PDF_BUTTON_FTP_PRESSED},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_FTW, IDR_PDF_BUTTON_FTW},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_FTW_HOVER, IDR_PDF_BUTTON_FTW_HOVER},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_FTW_PRESSED, IDR_PDF_BUTTON_FTW_PRESSED},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMIN_END, IDR_PDF_BUTTON_ZOOMIN_END},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMIN_END_HOVER,
-     IDR_PDF_BUTTON_ZOOMIN_END_HOVER},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMIN_END_PRESSED,
-     IDR_PDF_BUTTON_ZOOMIN_END_PRESSED},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMIN, IDR_PDF_BUTTON_ZOOMIN},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMIN_HOVER, IDR_PDF_BUTTON_ZOOMIN_HOVER},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMIN_PRESSED, IDR_PDF_BUTTON_ZOOMIN_PRESSED},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMOUT, IDR_PDF_BUTTON_ZOOMOUT},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMOUT_HOVER, IDR_PDF_BUTTON_ZOOMOUT_HOVER},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMOUT_PRESSED,
-     IDR_PDF_BUTTON_ZOOMOUT_PRESSED},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_SAVE, IDR_PDF_BUTTON_SAVE},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_SAVE_HOVER, IDR_PDF_BUTTON_SAVE_HOVER},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_SAVE_PRESSED, IDR_PDF_BUTTON_SAVE_PRESSED},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_PRINT, IDR_PDF_BUTTON_PRINT},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_PRINT_HOVER, IDR_PDF_BUTTON_PRINT_HOVER},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_PRINT_PRESSED, IDR_PDF_BUTTON_PRINT_PRESSED},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_PRINT_DISABLED, IDR_PDF_BUTTON_PRINT_DISABLED},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_0, IDR_PDF_THUMBNAIL_0},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_1, IDR_PDF_THUMBNAIL_1},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_2, IDR_PDF_THUMBNAIL_2},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_3, IDR_PDF_THUMBNAIL_3},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_4, IDR_PDF_THUMBNAIL_4},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_5, IDR_PDF_THUMBNAIL_5},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_6, IDR_PDF_THUMBNAIL_6},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_7, IDR_PDF_THUMBNAIL_7},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_8, IDR_PDF_THUMBNAIL_8},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_9, IDR_PDF_THUMBNAIL_9},
-    {PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_NUM_BACKGROUND,
-     IDR_PDF_THUMBNAIL_NUM_BACKGROUND},
-    {PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_0, IDR_PDF_PROGRESS_BAR_0},
-    {PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_1, IDR_PDF_PROGRESS_BAR_1},
-    {PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_2, IDR_PDF_PROGRESS_BAR_2},
-    {PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_3, IDR_PDF_PROGRESS_BAR_3},
-    {PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_4, IDR_PDF_PROGRESS_BAR_4},
-    {PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_5, IDR_PDF_PROGRESS_BAR_5},
-    {PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_6, IDR_PDF_PROGRESS_BAR_6},
-    {PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_7, IDR_PDF_PROGRESS_BAR_7},
-    {PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_8, IDR_PDF_PROGRESS_BAR_8},
-    {PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_BACKGROUND,
-     IDR_PDF_PROGRESS_BAR_BACKGROUND},
-    {PP_RESOURCEIMAGE_PDF_PAGE_INDICATOR_BACKGROUND,
-     IDR_PDF_PAGE_INDICATOR_BACKGROUND},
-    {PP_RESOURCEIMAGE_PDF_PAGE_DROPSHADOW, IDR_PDF_PAGE_DROPSHADOW},
-    {PP_RESOURCEIMAGE_PDF_PAN_SCROLL_ICON, IDR_PAN_SCROLL_ICON},
-};
-
 PP_Var GetLocalizedString(PP_Instance instance_id,
                           PP_ResourceString string_id) {
   content::PepperPluginInstance* instance =
@@ -131,19 +67,7 @@ PP_Var GetLocalizedString(PP_Instance instance_id,
   if (!instance)
     return PP_MakeUndefined();
 
-  std::string rv;
-  if (string_id == PP_RESOURCESTRING_PDFGETPASSWORD) {
-    rv = base::UTF16ToUTF8(l10n_util::GetStringUTF16(IDS_PDF_NEED_PASSWORD));
-  } else if (string_id == PP_RESOURCESTRING_PDFLOADING) {
-    rv = base::UTF16ToUTF8(l10n_util::GetStringUTF16(IDS_PDF_PAGE_LOADING));
-  } else if (string_id == PP_RESOURCESTRING_PDFLOAD_FAILED) {
-    rv = base::UTF16ToUTF8(l10n_util::GetStringUTF16(IDS_PDF_PAGE_LOAD_FAILED));
-  } else if (string_id == PP_RESOURCESTRING_PDFPROGRESSLOADING) {
-    rv = base::UTF16ToUTF8(l10n_util::GetStringUTF16(IDS_PDF_PROGRESS_LOADING));
-  } else {
-    NOTREACHED();
-  }
-
+  std::string rv = GetStringResource(string_id);
   return ppapi::StringVar::StringToPPVar(rv);
 }
 
@@ -341,24 +265,13 @@ PP_Bool IsFeatureEnabled(PP_Instance instance, PP_PDFFeature feature) {
 PP_Resource GetResourceImageForScale(PP_Instance instance_id,
                                      PP_ResourceImage image_id,
                                      float scale) {
-  int res_id = 0;
-  for (size_t i = 0; i < arraysize(kResourceImageMap); ++i) {
-    if (kResourceImageMap[i].pp_id == image_id) {
-      res_id = kResourceImageMap[i].res_id;
-      break;
-    }
-  }
-  if (res_id == 0)
-    return 0;
-
   // Validate the instance.
   content::PepperPluginInstance* instance =
       content::PepperPluginInstance::Get(instance_id);
   if (!instance)
     return 0;
 
-  gfx::ImageSkia* res_image_skia =
-      ResourceBundle::GetSharedInstance().GetImageSkiaNamed(res_id);
+  gfx::ImageSkia* res_image_skia = GetImageResource(image_id);
 
   if (!res_image_skia)
     return 0;