Update to Chromium version 101.0.4951.0 (#982481)

Known issues:
- chrome: Some ceftests are failing due to bfcache same-site enabled by default
  (see issue #3301)

libcef/renderer/alloy/alloy_content_renderer_client.cc

@@ -53,8 +53,7 @@
 #include "chrome/renderer/chrome_content_renderer_client.h"
 #include "chrome/renderer/extensions/chrome_extensions_renderer_client.h"
 #include "chrome/renderer/loadtimes_extension_bindings.h"
-#include "chrome/renderer/pepper/chrome_pdf_print_client.h"
-#include "chrome/renderer/pepper/pepper_helper.h"
+#include "chrome/renderer/media/chrome_key_systems.h"
 #include "chrome/renderer/plugins/chrome_plugin_placeholder.h"
 #include "components/content_settings/core/common/content_settings_types.h"
 #include "components/nacl/common/nacl_constants.h"
@@ -231,11 +230,6 @@ void AlloyContentRendererClient::RenderThreadStarted() {
   }
 #endif  // BUILDFLAG(IS_MAC)
 
-  if (extensions::PdfExtensionEnabled()) {
-    pdf_print_client_.reset(new ChromePDFPrintClient());
-    pdf::PepperPDFHost::SetPrintClient(pdf_print_client_.get());
-  }
-
   if (extensions::ExtensionsEnabled())
     extensions_renderer_client_->RenderThreadStarted();
 }
@@ -275,8 +269,6 @@ void AlloyContentRendererClient::RenderFrameCreated(
     content::RenderFrame* render_frame) {
   auto render_frame_observer = new CefRenderFrameObserver(render_frame);
 
-  new PepperHelper(render_frame);
-
   if (extensions::ExtensionsEnabled()) {
     extensions_renderer_client_->RenderFrameCreated(
         render_frame, render_frame_observer->registry());
@@ -352,8 +344,7 @@ bool AlloyContentRendererClient::IsPluginHandledExternally(
         plugin_element);
     return false;
   }
-  if (plugin_info->actual_mime_type == pdf::kInternalPluginMimeType &&
-      pdf::IsInternalPluginExternallyHandled()) {
+  if (plugin_info->actual_mime_type == pdf::kInternalPluginMimeType) {
     // Only actually treat the internal PDF plugin as externally handled if
     // used within an origin allowed to create the internal PDF plugin;
     // otherwise, let Blink try to create the in-process PDF plugin.
@@ -421,11 +412,7 @@ bool AlloyContentRendererClient::IsOriginIsolatedPepperPlugin(
 
 void AlloyContentRendererClient::GetSupportedKeySystems(
     media::GetSupportedKeySystemsCB cb) {
-  key_systems_provider_.GetSupportedKeySystems(std::move(cb));
-}
-
-bool AlloyContentRendererClient::IsKeySystemsUpdateNeeded() {
-  return key_systems_provider_.IsKeySystemsUpdateNeeded();
+  GetChromeKeySystems(std::move(cb));
 }
 
 void AlloyContentRendererClient::RunScriptsAtDocumentStart(

libcef/renderer/alloy/alloy_content_renderer_client.h

@@ -18,7 +18,6 @@
 #include "base/task/current_thread.h"
 #include "base/task/single_thread_task_runner.h"
 #include "chrome/common/plugin.mojom.h"
-#include "chrome/renderer/media/chrome_key_systems_provider.h"
 #include "content/public/renderer/content_renderer_client.h"
 #include "content/public/renderer/render_thread.h"
 #include "mojo/public/cpp/bindings/generic_pending_receiver.h"
@@ -43,7 +42,6 @@ class WebCacheImpl;
 
 class AlloyRenderThreadObserver;
 class CefRenderManager;
-class ChromePDFPrintClient;
 class SpellCheck;
 
 class AlloyContentRendererClient
@@ -101,7 +99,6 @@ class AlloyContentRendererClient
   bool IsLinkVisited(uint64_t link_hash) override;
   bool IsOriginIsolatedPepperPlugin(const base::FilePath& plugin_path) override;
   void GetSupportedKeySystems(media::GetSupportedKeySystemsCB cb) override;
-  bool IsKeySystemsUpdateNeeded() override;
   void RunScriptsAtDocumentStart(content::RenderFrame* render_frame) override;
   void RunScriptsAtDocumentEnd(content::RenderFrame* render_frame) override;
   void RunScriptsAtDocumentIdle(content::RenderFrame* render_frame) override;
@@ -140,16 +137,10 @@ class AlloyContentRendererClient
   std::unique_ptr<SpellCheck> spellcheck_;
   std::unique_ptr<visitedlink::VisitedLinkReader> visited_link_slave_;
 
-  std::unique_ptr<ChromePDFPrintClient> pdf_print_client_;
-
   std::unique_ptr<extensions::ExtensionsClient> extensions_client_;
   std::unique_ptr<extensions::CefExtensionsRendererClient>
       extensions_renderer_client_;
 
-  // Used to refresh the list of supported key systems after Widevine is
-  // installed as a component update.
-  ChromeKeySystemsProvider key_systems_provider_;
-
   // Used in single-process mode to test when cleanup is complete.
   // Access must be protected by |single_process_cleanup_lock_|.
   bool single_process_cleanup_complete_ = false;

libcef/renderer/browser_impl.cc

@@ -16,9 +16,9 @@
 
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
-#include "content/public/renderer/document_state.h"
 #include "content/public/renderer/render_frame.h"
 #include "content/public/renderer/render_view.h"
+#include "content/renderer/document_state.h"
 #include "content/renderer/navigation_state.h"
 #include "third_party/blink/public/platform/web_string.h"
 #include "third_party/blink/public/platform/web_url_error.h"

libcef/renderer/extensions/print_render_frame_helper_delegate.cc

@@ -17,7 +17,6 @@
 #include "content/public/renderer/render_frame.h"
 #include "extensions/common/constants.h"
 #include "extensions/renderer/guest_view/mime_handler_view/post_message_support.h"
-#include "pdf/pdf_features.h"
 #include "services/service_manager/public/cpp/interface_provider.h"
 #include "third_party/blink/public/web/web_document.h"
 #include "third_party/blink/public/web/web_element.h"
@@ -35,25 +34,8 @@ CefPrintRenderFrameHelperDelegate::~CefPrintRenderFrameHelperDelegate() =
 // Return the PDF object element if |frame| is the out of process PDF extension.
 blink::WebElement CefPrintRenderFrameHelperDelegate::GetPdfElement(
     blink::WebLocalFrame* frame) {
-  if (IsPdfInternalPluginAllowedOrigin(frame->GetSecurityOrigin())) {
-    DCHECK(!base::FeatureList::IsEnabled(chrome_pdf::features::kPdfUnseasoned));
-    // <object> with id="plugin" is created in
-    // chrome/browser/resources/pdf/pdf_viewer_base.js.
-    auto viewer_element = frame->GetDocument().GetElementById("viewer");
-    if (!viewer_element.IsNull() && !viewer_element.ShadowRoot().IsNull()) {
-      auto plugin_element =
-          viewer_element.ShadowRoot().QuerySelector("#plugin");
-      if (!plugin_element.IsNull()) {
-        return plugin_element;
-      }
-    }
-    NOTREACHED();
-    return blink::WebElement();
-  }
-
   if (frame->Parent() &&
       IsPdfInternalPluginAllowedOrigin(frame->Parent()->GetSecurityOrigin())) {
-    DCHECK(base::FeatureList::IsEnabled(chrome_pdf::features::kPdfUnseasoned));
     auto plugin_element = frame->GetDocument().QuerySelector("embed");
     DCHECK(!plugin_element.IsNull());
     return plugin_element;

libcef/renderer/render_manager.cc

@@ -41,6 +41,7 @@
 #include "services/network/public/mojom/cors_origin_pattern.mojom.h"
 #include "third_party/blink/public/platform/web_string.h"
 #include "third_party/blink/public/platform/web_url.h"
+#include "third_party/blink/public/web/web_frame.h"
 #include "third_party/blink/public/web/web_security_policy.h"
 #include "third_party/blink/public/web/web_view.h"
 #include "third_party/blink/public/web/web_view_observer.h"