Remove the unused parts of PPB_PDF

components/pdf/renderer/ppb_pdf_impl.cc

Index: components/pdf/renderer/ppb_pdf_impl.cc
diff --git a/components/pdf/renderer/ppb_pdf_impl.cc b/components/pdf/renderer/ppb_pdf_impl.cc
deleted file mode 100644
index 3553c471b7e3267f430bde536e7196aefc9e33b8..0000000000000000000000000000000000000000
--- a/components/pdf/renderer/ppb_pdf_impl.cc
+++ /dev/null
@@ -1,393 +0,0 @@
-// Copyright (c) 2012 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/ppb_pdf_impl.h"
-
-#include "base/files/scoped_file.h"
-#include "base/lazy_instance.h"
-#include "base/metrics/histogram.h"
-#include "base/numerics/safe_conversions.h"
-#include "base/strings/utf_string_conversions.h"
-#include "base/threading/thread_local.h"
-#include "build/build_config.h"
-#include "components/pdf/common/pdf_messages.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"
-#include "content/public/renderer/render_thread.h"
-#include "content/public/renderer/render_view.h"
-#include "gin/v8_initializer.h"
-#include "ppapi/c/pp_resource.h"
-#include "ppapi/c/private/ppb_pdf.h"
-#include "ppapi/c/trusted/ppb_browser_font_trusted.h"
-#include "ppapi/shared_impl/ppapi_globals.h"
-#include "ppapi/shared_impl/resource.h"
-#include "ppapi/shared_impl/resource_tracker.h"
-#include "ppapi/shared_impl/var.h"
-#include "third_party/WebKit/public/web/WebDocument.h"
-#include "third_party/WebKit/public/web/WebElement.h"
-#include "third_party/WebKit/public/web/WebLocalFrame.h"
-#include "third_party/WebKit/public/web/WebPluginContainer.h"
-#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"
-
-namespace pdf {
-namespace {
-
-// --single-process model may fail in CHECK(!g_print_client) if there exist
-// more than two RenderThreads, so here we use TLS for g_print_client.
-// See http://crbug.com/457580.
-base::LazyInstance<base::ThreadLocalPointer<PPB_PDF_Impl::PrintClient> >::Leaky
-    g_print_client_tls = LAZY_INSTANCE_INITIALIZER;
-
-#if defined(OS_POSIX) && !defined(OS_MACOSX) && !defined(OS_ANDROID)
-class PrivateFontFile : public ppapi::Resource {
- public:
-  PrivateFontFile(PP_Instance instance, int fd)
-      : Resource(ppapi::OBJECT_IS_IMPL, instance), fd_(fd) {}
-
-  bool GetFontTable(uint32_t table, void* output, uint32_t* output_length) {
-    size_t temp_size = static_cast<size_t>(*output_length);
-    bool rv = content::GetFontTable(fd_.get(),
-                                    table,
-                                    0 /* offset */,
-                                    static_cast<uint8_t*>(output),
-                                    &temp_size);
-    *output_length = base::checked_cast<uint32_t>(temp_size);
-    return rv;
-  }
-
- protected:
-  virtual ~PrivateFontFile() {}
-
- private:
-  base::ScopedFD fd_;
-};
-#endif
-
-PP_Var GetLocalizedString(PP_Instance instance_id,
-                          PP_ResourceString string_id) {
-  content::PepperPluginInstance* instance =
-      content::PepperPluginInstance::Get(instance_id);
-  if (!instance)
-    return PP_MakeUndefined();
-
-  std::string rv = GetStringResource(string_id);
-  return ppapi::StringVar::StringToPPVar(rv);
-}
-
-PP_Resource GetFontFileWithFallback(
-    PP_Instance instance_id,
-    const PP_BrowserFont_Trusted_Description* description,
-    PP_PrivateFontCharset charset) {
-#if defined(OS_POSIX) && !defined(OS_MACOSX) && !defined(OS_ANDROID)
-  // Validate the instance before using it below.
-  if (!content::PepperPluginInstance::Get(instance_id))
-    return 0;
-
-  scoped_refptr<ppapi::StringVar> face_name(
-      ppapi::StringVar::FromPPVar(description->face));
-  if (!face_name.get())
-    return 0;
-
-  int fd = content::MatchFontWithFallback(
-      face_name->value().c_str(),
-      description->weight >= PP_BROWSERFONT_TRUSTED_WEIGHT_BOLD,
-      description->italic,
-      charset,
-      description->family);
-  if (fd == -1)
-    return 0;
-
-  scoped_refptr<PrivateFontFile> font(new PrivateFontFile(instance_id, fd));
-
-  return font->GetReference();
-#else
-  // For trusted PPAPI plugins, this is only needed in Linux since font loading
-  // on Windows and Mac works through the renderer sandbox.
-  return 0;
-#endif
-}
-
-bool GetFontTableForPrivateFontFile(PP_Resource font_file,
-                                    uint32_t table,
-                                    void* output,
-                                    uint32_t* output_length) {
-#if defined(OS_POSIX) && !defined(OS_MACOSX) && !defined(OS_ANDROID)
-  ppapi::Resource* resource =
-      ppapi::PpapiGlobals::Get()->GetResourceTracker()->GetResource(font_file);
-  if (!resource)
-    return false;
-
-  PrivateFontFile* font = static_cast<PrivateFontFile*>(resource);
-  return font->GetFontTable(table, output, output_length);
-#else
-  return false;
-#endif
-}
-
-void SearchString(PP_Instance instance,
-                  const unsigned short* input_string,
-                  const unsigned short* input_term,
-                  bool case_sensitive,
-                  PP_PrivateFindResult** results,
-                  int* count) {
-  const base::char16* string =
-      reinterpret_cast<const base::char16*>(input_string);
-  const base::char16* term = reinterpret_cast<const base::char16*>(input_term);
-
-  UErrorCode status = U_ZERO_ERROR;
-  UStringSearch* searcher =
-      usearch_open(term,
-                   -1,
-                   string,
-                   -1,
-                   content::RenderThread::Get()->GetLocale().c_str(),
-                   0,
-                   &status);
-  DCHECK(status == U_ZERO_ERROR || status == U_USING_FALLBACK_WARNING ||
-         status == U_USING_DEFAULT_WARNING);
-  UCollationStrength strength = case_sensitive ? UCOL_TERTIARY : UCOL_PRIMARY;
-
-  UCollator* collator = usearch_getCollator(searcher);
-  if (ucol_getStrength(collator) != strength) {
-    ucol_setStrength(collator, strength);
-    usearch_reset(searcher);
-  }
-
-  status = U_ZERO_ERROR;
-  int match_start = usearch_first(searcher, &status);
-  DCHECK(status == U_ZERO_ERROR);
-
-  std::vector<PP_PrivateFindResult> pp_results;
-  while (match_start != USEARCH_DONE) {
-    size_t matched_length = usearch_getMatchedLength(searcher);
-    PP_PrivateFindResult result;
-    result.start_index = match_start;
-    result.length = matched_length;
-    pp_results.push_back(result);
-    match_start = usearch_next(searcher, &status);
-    DCHECK(status == U_ZERO_ERROR);
-  }
-
-  *count = pp_results.size();
-  if (*count) {
-    *results = reinterpret_cast<PP_PrivateFindResult*>(
-        malloc(*count * sizeof(PP_PrivateFindResult)));
-    memcpy(*results, &pp_results[0], *count * sizeof(PP_PrivateFindResult));
-  } else {
-    *results = NULL;
-  }
-
-  usearch_close(searcher);
-}
-
-void DidStartLoading(PP_Instance instance_id) {
-  content::PepperPluginInstance* instance =
-      content::PepperPluginInstance::Get(instance_id);
-  if (!instance)
-    return;
-  instance->GetRenderView()->DidStartLoading();
-}
-
-void DidStopLoading(PP_Instance instance_id) {
-  content::PepperPluginInstance* instance =
-      content::PepperPluginInstance::Get(instance_id);
-  if (!instance)
-    return;
-  instance->GetRenderView()->DidStopLoading();
-}
-
-void SetContentRestriction(PP_Instance instance_id, int restrictions) {
-  content::PepperPluginInstance* instance =
-      content::PepperPluginInstance::Get(instance_id);
-  if (!instance)
-    return;
-  instance->GetRenderView()->Send(new PDFHostMsg_PDFUpdateContentRestrictions(
-      instance->GetRenderView()->GetRoutingID(), restrictions));
-}
-
-void HistogramPDFPageCount(PP_Instance instance, int count) {
-  UMA_HISTOGRAM_COUNTS_10000("PDF.PageCount", count);
-}
-
-void UserMetricsRecordAction(PP_Instance instance, PP_Var action) {
-  scoped_refptr<ppapi::StringVar> action_str(
-      ppapi::StringVar::FromPPVar(action));
-  if (action_str.get())
-    content::RenderThread::Get()->RecordComputedAction(action_str->value());
-}
-
-void HasUnsupportedFeature(PP_Instance instance_id) {
-  content::PepperPluginInstance* instance =
-      content::PepperPluginInstance::Get(instance_id);
-  if (!instance)
-    return;
-
-  // Only want to show an info bar if the pdf is the whole tab.
-  if (!instance->IsFullPagePlugin())
-    return;
-
-  blink::WebView* view =
-      instance->GetContainer()->element().document().frame()->view();
-  content::RenderView* render_view = content::RenderView::FromWebView(view);
-  render_view->Send(
-      new PDFHostMsg_PDFHasUnsupportedFeature(render_view->GetRoutingID()));
-}
-
-void SaveAs(PP_Instance instance_id) {
-  content::PepperPluginInstance* instance =
-      content::PepperPluginInstance::Get(instance_id);
-  if (!instance)
-    return;
-  GURL url = instance->GetPluginURL();
-
-  content::RenderView* render_view = instance->GetRenderView();
-  blink::WebLocalFrame* frame =
-      render_view->GetWebView()->mainFrame()->toWebLocalFrame();
-  content::Referrer referrer = content::Referrer::SanitizeForRequest(
-      url, content::Referrer(frame->document().url(),
-                             frame->document().referrerPolicy()));
-  render_view->Send(
-      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:
-      return PP_TRUE;
-    case PP_PDFFEATURE_PRINTING:
-      return (g_print_client_tls.Pointer()->Get() &&
-              g_print_client_tls.Pointer()->Get()->IsPrintingEnabled(instance))
-                 ? PP_TRUE
-                 : PP_FALSE;
-  }
-  return PP_FALSE;
-}
-
-PP_Resource GetResourceImageForScale(PP_Instance instance_id,
-                                     PP_ResourceImage image_id,
-                                     float scale) {
-  // Validate the instance.
-  content::PepperPluginInstance* instance =
-      content::PepperPluginInstance::Get(instance_id);
-  if (!instance)
-    return 0;
-
-  gfx::ImageSkia* res_image_skia = GetImageResource(image_id);
-
-  if (!res_image_skia)
-    return 0;
-
-  return instance->CreateImage(res_image_skia, scale);
-}
-
-PP_Resource GetResourceImage(PP_Instance instance_id,
-                             PP_ResourceImage image_id) {
-  return GetResourceImageForScale(instance_id, image_id, 1.0f);
-}
-
-PP_Var ModalPromptForPassword(PP_Instance instance_id, PP_Var message) {
-  content::PepperPluginInstance* instance =
-      content::PepperPluginInstance::Get(instance_id);
-  if (!instance)
-    return PP_MakeUndefined();
-
-  std::string actual_value;
-  scoped_refptr<ppapi::StringVar> message_string(
-      ppapi::StringVar::FromPPVar(message));
-
-  IPC::SyncMessage* msg = new PDFHostMsg_PDFModalPromptForPassword(
-      instance->GetRenderView()->GetRoutingID(),
-      message_string->value(),
-      &actual_value);
-  msg->EnableMessagePumping();
-  instance->GetRenderView()->Send(msg);
-
-  return ppapi::StringVar::StringToPPVar(actual_value);
-}
-
-PP_Bool IsOutOfProcess(PP_Instance instance_id) {
-  return PP_FALSE;
-}
-
-// This function is intended for both in-process and out-of-process pdf.
-void SetSelectedText(PP_Instance instance_id, const char* selected_text) {
-  content::PepperPluginInstance* instance =
-      content::PepperPluginInstance::Get(instance_id);
-  if (!instance)
-    return;
-
-  base::string16 selection_text;
-  base::UTF8ToUTF16(selected_text, strlen(selected_text), &selection_text);
-  instance->SetSelectedText(selection_text);
-}
-
-void SetLinkUnderCursor(PP_Instance instance_id, const char* url) {
-  content::PepperPluginInstance* instance =
-      content::PepperPluginInstance::Get(instance_id);
-  if (!instance)
-    return;
-  instance->SetLinkUnderCursor(url);
-}
-
-void GetV8ExternalSnapshotData(PP_Instance instance_id,
-                               const char** natives_data_out,
-                               int* natives_size_out,
-                               const char** snapshot_data_out,
-                               int* snapshot_size_out) {
-  gin::V8Initializer::GetV8ExternalSnapshotData(
-      natives_data_out, natives_size_out, snapshot_data_out, snapshot_size_out);
-}
-
-const PPB_PDF ppb_pdf = {                      //
-    &GetLocalizedString,                       //
-    &GetResourceImage,                         //
-    &GetFontFileWithFallback,                  //
-    &GetFontTableForPrivateFontFile,           //
-    &SearchString,                             //
-    &DidStartLoading,                          //
-    &DidStopLoading,                           //
-    &SetContentRestriction,                    //
-    &HistogramPDFPageCount,                    //
-    &UserMetricsRecordAction,                  //
-    &HasUnsupportedFeature,                    //
-    &SaveAs,                                   //
-    &Print,                                    //
-    &IsFeatureEnabled,                         //
-    &GetResourceImageForScale,                 //
-    &ModalPromptForPassword,                   //
-    &IsOutOfProcess,                           //
-    &SetSelectedText,                          //
-    &SetLinkUnderCursor,                       //
-    &GetV8ExternalSnapshotData,                //
-};
-
-}  // namespace
-
-// static
-const PPB_PDF* PPB_PDF_Impl::GetInterface() {
-  return &ppb_pdf;
-}
-
-// static
-bool PPB_PDF_Impl::InvokePrintingForInstance(PP_Instance instance_id) {
-  return g_print_client_tls.Pointer()->Get()
-             ? g_print_client_tls.Pointer()->Get()->Print(instance_id)
-             : false;
-}
-
-void PPB_PDF_Impl::SetPrintClient(PPB_PDF_Impl::PrintClient* client) {
-  CHECK(!g_print_client_tls.Pointer()->Get())
-      << "There should only be a single PrintClient for one RenderThread.";
-  g_print_client_tls.Pointer()->Set(client);
-}
-
-}  // namespace pdf