Use pdfium

DEPS

@@ -3,7 +3,7 @@ use_relative_paths = True
 deps = {
   "vendor/ad-block": "https://github.com/brave/ad-block.git@11ab48c4b2bd5355e789d4c87005ab2c14eecc09",
   "vendor/autoplay-whitelist": "https://github.com/brave/autoplay-whitelist.git@a85d71af4e416cf8188dc297320b0d777aafa315",
-  "vendor/extension-whitelist": "https://github.com/brave/extension-whitelist.git@463e5e4e06e0ca84927176e8c72f6076ae9b6829",
+  "vendor/extension-whitelist": "https://github.com/brave/extension-whitelist.git@a3a9a768900909739db99d79541fc56c2984407d",
   "vendor/tracking-protection": "https://github.com/brave/tracking-protection.git@29b1f86b11a8c7438fd7d57b446a77a84946712a",
   "vendor/hashset-cpp": "https://github.com/brave/hashset-cpp.git@4b55fe39bb25bb0d8b11a43d547d75f00c6c46fb",
   "vendor/bloom-filter-cpp": "https://github.com/brave/bloom-filter-cpp.git@9be5c63b14e094156e00c8b28f205e7794f0b92c",

browser/extensions/brave_component_loader.cc

@@ -25,30 +25,14 @@
 
 namespace extensions {
 
-// static
-bool BraveComponentLoader::IsPdfjsDisabled() {
-#if defined(OS_ANDROID)
-  return true;
-#else
-  const base::CommandLine& command_line =
-    *base::CommandLine::ForCurrentProcess();
-  return command_line.HasSwitch(switches::kDisablePDFJSExtension);
-#endif
-}
-
 BraveComponentLoader::BraveComponentLoader(
     ExtensionServiceInterface* extension_service,
     PrefService* profile_prefs,
     PrefService* local_state,
     Profile* profile)
     : ComponentLoader(extension_service, profile_prefs, local_state, profile),
       profile_(profile),
-      profile_prefs_(profile_prefs),
-      testing_callbacks_(nullptr) {
-// TODO(bridiver) - this doesn't belong here
-#if !defined(OS_ANDROID)
-  ObserveOpenPdfExternallySetting();
-#endif
+      profile_prefs_(profile_prefs) {
 }
 
 BraveComponentLoader::~BraveComponentLoader() {
@@ -105,12 +89,6 @@ void BraveComponentLoader::AddDefaultComponentExtensions(
     Add(IDR_BRAVE_EXTENSION, brave_extension_path);
   }
 
-  if (!profile_prefs_->GetBoolean(prefs::kPluginsAlwaysOpenPdfExternally) &&
-      !command_line.HasSwitch(switches::kDisablePDFJSExtension)) {
-    AddExtension(pdfjs_extension_id, pdfjs_extension_name,
-                 pdfjs_extension_public_key);
-  }
-
 #if BUILDFLAG(BRAVE_REWARDS_ENABLED)
   if (!command_line.HasSwitch(switches::kDisableBraveRewardsExtension)) {
     base::FilePath brave_rewards_path(FILE_PATH_LITERAL(""));
@@ -130,39 +108,4 @@ void BraveComponentLoader::AddDefaultComponentExtensions(
   }
 }
 
-#if !defined(OS_ANDROID)
-void BraveComponentLoader::ObserveOpenPdfExternallySetting() {
-  // Observe the setting change only in regular profiles since the PDF settings
-  // page is not available in Guest/Tor profiles.
-  DCHECK(profile_ && profile_prefs_);
-  if (!profile_->IsGuestSession()) {
-    registrar_.Init(profile_prefs_);
-    registrar_.Add(prefs::kPluginsAlwaysOpenPdfExternally,
-      base::Bind(&BraveComponentLoader::UpdatePdfExtension,
-        base::Unretained(this)));
-  }
-}
-#endif
-
-void BraveComponentLoader::UpdatePdfExtension(const std::string& pref_name) {
-  DCHECK(pref_name == prefs::kPluginsAlwaysOpenPdfExternally);
-  DCHECK(profile_prefs_);
-  if (profile_prefs_->GetBoolean(prefs::kPluginsAlwaysOpenPdfExternally) ||
-      IsPdfjsDisabled()) {
-    if (testing_callbacks_)
-      testing_callbacks_->OnPdfExtensionAction(TestingCallbacks::WILL_REMOVE);
-    Remove(pdfjs_extension_id);
-  } else if (!Exists(pdfjs_extension_id)) {
-    if (testing_callbacks_)
-      testing_callbacks_->OnPdfExtensionAction(TestingCallbacks::WILL_ADD);
-    AddExtension(pdfjs_extension_id, pdfjs_extension_name,
-                 pdfjs_extension_public_key);
-  }
-}
-
-void BraveComponentLoader::set_testing_callbacks(
-    TestingCallbacks* testing_callbacks) {
-  testing_callbacks_ = testing_callbacks;
-}
-
 }  // namespace extensions

browser/extensions/brave_component_loader.h

@@ -12,8 +12,6 @@
 #include "chrome/browser/extensions/component_loader.h"
 #include "components/prefs/pref_change_registrar.h"
 
-class BraveComponentLoaderTest;
-
 namespace extensions {
 
 // For registering, loading, and unloading component extensions.
@@ -41,34 +39,15 @@ class BraveComponentLoader : public ComponentLoader {
   // hangouts is set.  If the buildflag is not set, it won't add though.
   void ForceAddHangoutServicesExtension();
 
-  static bool IsPdfjsDisabled();
-
  private:
 #if BUILDFLAG(ENABLE_HANGOUT_SERVICES_EXTENSION)
   void AddHangoutServicesExtension() override;
 #endif  // BUILDFLAG(ENABLE_HANGOUT_SERVICES_EXTENSION)
-  friend class ::BraveComponentLoaderTest;
-#if !defined(OS_ANDROID)
-  void ObserveOpenPdfExternallySetting();
-#endif
-  // Callback for changes to the AlwaysOpenPdfExternally setting.
-  void UpdatePdfExtension(const std::string& pref_name);
-
-  struct TestingCallbacks {
-    enum PdfExtensionAction {
-      NONE,
-      WILL_ADD,
-      WILL_REMOVE,
-    };
-    virtual void OnPdfExtensionAction(PdfExtensionAction action) = 0;
-  };
-
-  void set_testing_callbacks(TestingCallbacks* testing_callbacks);
 
   Profile* profile_;
   PrefService* profile_prefs_;
   PrefChangeRegistrar registrar_;
-  TestingCallbacks* testing_callbacks_;
+
   DISALLOW_COPY_AND_ASSIGN(BraveComponentLoader);
 };
 

browser/extensions/brave_extension_provider.cc

@@ -27,8 +27,7 @@ bool IsBlacklisted(const extensions::Extension* extension) {
       {// Used for tests, corresponds to
        // brave/test/data/should-be-blocked-extension.
        "mlklomjnahgiddgfdgjhibinlfibfffc",
-       // Chromium PDF Viewer.
-       "mhjfbmdgcfjbbpaeojofohoefgiehjai"});
+     });
 
   if (std::find(blacklisted_extensions.begin(), blacklisted_extensions.end(),
                 extension->id()) != blacklisted_extensions.end())
@@ -58,7 +57,6 @@ bool BraveExtensionProvider::IsVetted(const std::string id) {
       brave_sync_extension_id,
       brave_webtorrent_extension_id,
       crl_set_extension_id,
-      pdfjs_extension_id,
       hangouts_extension_id,
       widevine_extension_id,
       brave_component_updater::kLocalDataFilesComponentId,
@@ -79,6 +77,8 @@ bool BraveExtensionProvider::IsVetted(const std::string id) {
       "bhlmpjhncoojbkemjkeppfahkglffilp",
       // Test ID: Brave Tor Client Updater
       "ngicbhhaldfdgmjhilmnleppfpmkgbbk",
+      // Chromium PDF Viewer.
+      "mhjfbmdgcfjbbpaeojofohoefgiehjai",
   });
   if (std::find(vetted_extensions.begin(), vetted_extensions.end(), id) !=
       vetted_extensions.end())

browser/extensions/brave_extension_provider_browsertest.cc

@@ -44,34 +44,6 @@ IN_PROC_BROWSER_TEST_F(BraveExtensionProviderTest, WhitelistedExtension) {
   ASSERT_TRUE(extension);
 }
 
-IN_PROC_BROWSER_TEST_F(BraveExtensionProviderTest, PDFJSInstalls) {
-  base::FilePath test_data_dir;
-  GetTestDataDir(&test_data_dir);
-  InstallExtensionSilently(extension_service(),
-      test_data_dir.AppendASCII("pdfjs.crx"));
-
-  content::WebContents* contents =
-      browser()->tab_strip_model()->GetActiveWebContents();
-  GURL url = embedded_test_server()->GetURL("/test.pdf");
-  ui_test_utils::NavigateToURL(browser(), url);
-  ASSERT_TRUE(WaitForLoadStop(contents));
-
-  // Test.pdf is just a PDF file for an icon with title test.ico
-  base::string16 expected_title(base::ASCIIToUTF16("test.ico - test.pdf"));
-    content::TitleWatcher title_watcher(
-        browser()->tab_strip_model()->GetActiveWebContents(), expected_title);
-  ui_test_utils::NavigateToURL(browser(), url);
-  EXPECT_EQ(expected_title, title_watcher.WaitAndGetTitle());
-
-  // Make sure pdfjs embed exists
-  bool pdfjs_exists;
-  ASSERT_TRUE(content::ExecuteScriptAndExtractBool(
-      browser()->tab_strip_model()->GetWebContentsAt(0),
-      "window.domAutomationController.send("
-        "!!document.body.querySelector(\"#chrome-pdfjs-logo-bg\"))", &pdfjs_exists));
-  ASSERT_TRUE(pdfjs_exists);
-}
-
 // Load an extension page with an ad image, and make sure it is NOT blocked.
 // It would otherwise be blocked though if it wasn't an extension.
 IN_PROC_BROWSER_TEST_F(BraveExtensionProviderTest, AdsNotBlockedByDefaultBlockerInExtension) {

browser/ui/webui/brave_settings_ui.cc

@@ -49,8 +49,6 @@ void BraveSettingsUI::AddResources(content::WebUIDataSource* html_source,
                                  kBraveSettingsResources[i].value);
   }
 
-  html_source->AddBoolean("isPdfjsDisabled",
-                          extensions::BraveComponentLoader::IsPdfjsDisabled());
   const base::CommandLine& command_line =
       *base::CommandLine::ForCurrentProcess();
   html_source->AddBoolean("isSyncDisabled",

chromium_src/chrome/browser/extensions/component_extensions_whitelist/whitelist.cc

@@ -20,7 +20,6 @@ namespace extensions {
   bool IsComponentExtensionWhitelisted(const std::string& extension_id) {
     const char* const kAllowed[] = {
       brave_extension_id,
-      pdfjs_extension_id,
       brave_rewards_extension_id,
       brave_sync_extension_id,
       brave_webtorrent_extension_id