diff --git a/CHROMIUM_BUILD_COMPATIBILITY.txt b/CHROMIUM_BUILD_COMPATIBILITY.txt
index b28e52879..5986ca4ab 100644
--- a/CHROMIUM_BUILD_COMPATIBILITY.txt
+++ b/CHROMIUM_BUILD_COMPATIBILITY.txt
@@ -7,6 +7,6 @@
 # https://bitbucket.org/chromiumembedded/cef/wiki/BranchesAndBuilding
 
 {
-  'chromium_checkout': 'refs/tags/99.0.4844.9',
+  'chromium_checkout': 'refs/tags/99.0.4844.27',
   'depot_tools_checkout': '289dedd36b'
 }
diff --git a/libcef/browser/net_service/proxy_url_loader_factory.cc b/libcef/browser/net_service/proxy_url_loader_factory.cc
index 5c83edc1e..3f7d8a862 100644
--- a/libcef/browser/net_service/proxy_url_loader_factory.cc
+++ b/libcef/browser/net_service/proxy_url_loader_factory.cc
@@ -227,7 +227,8 @@ class InterceptedRequest : public network::mojom::URLLoader,
 
   // mojom::URLLoaderClient methods:
   void OnReceiveEarlyHints(network::mojom::EarlyHintsPtr early_hints) override;
-  void OnReceiveResponse(network::mojom::URLResponseHeadPtr head) override;
+  void OnReceiveResponse(network::mojom::URLResponseHeadPtr head,
+                         mojo::ScopedDataPipeConsumerHandle body) override;
   void OnReceiveRedirect(const net::RedirectInfo& redirect_info,
                          network::mojom::URLResponseHeadPtr head) override;
   void OnUploadProgress(int64_t current_position,
@@ -333,6 +334,7 @@ class InterceptedRequest : public network::mojom::URLLoader,
 
   network::ResourceRequest request_;
   network::mojom::URLResponseHeadPtr current_response_;
+  mojo::ScopedDataPipeConsumerHandle current_body_;
   scoped_refptr<net::HttpResponseHeaders> current_headers_;
   scoped_refptr<net::HttpResponseHeaders> override_headers_;
   GURL original_url_;
@@ -556,8 +558,10 @@ void InterceptedRequest::OnReceiveEarlyHints(
 }
 
 void InterceptedRequest::OnReceiveResponse(
-    network::mojom::URLResponseHeadPtr head) {
+    network::mojom::URLResponseHeadPtr head,
+    mojo::ScopedDataPipeConsumerHandle body) {
   current_response_ = std::move(head);
+  current_body_ = std::move(body);
 
   if (current_request_uses_header_client_) {
     // Use the headers we got from OnHeadersReceived as that'll contain
@@ -580,6 +584,7 @@ void InterceptedRequest::OnReceiveRedirect(
   bool needs_callback = false;
 
   current_response_ = std::move(head);
+  current_body_.reset();
 
   if (current_request_uses_header_client_) {
     // Use the headers we got from OnHeadersReceived as that'll contain
@@ -743,6 +748,7 @@ void InterceptedRequest::InterceptResponseReceived(
     current_response_ = network::mojom::URLResponseHead::New();
     current_response_->request_start = base::TimeTicks::Now();
     current_response_->response_start = base::TimeTicks::Now();
+    current_body_.reset();
 
     auto headers = MakeResponseHeaders(
         net::HTTP_TEMPORARY_REDIRECT, std::string(), std::string(),
@@ -1041,7 +1047,8 @@ void InterceptedRequest::ContinueToResponseStarted(int error_code) {
     if (proxied_client_receiver_.is_bound())
       proxied_client_receiver_.Resume();
 
-    target_client_->OnReceiveResponse(std::move(current_response_));
+    target_client_->OnReceiveResponse(std::move(current_response_),
+                                      std::move(current_body_));
   }
 
   if (stream_loader_)
diff --git a/libcef/browser/net_service/stream_reader_url_loader.cc b/libcef/browser/net_service/stream_reader_url_loader.cc
index 9f6833d2f..6bbac0425 100644
--- a/libcef/browser/net_service/stream_reader_url_loader.cc
+++ b/libcef/browser/net_service/stream_reader_url_loader.cc
@@ -697,7 +697,8 @@ void StreamReaderURLLoader::ContinueWithResponseHeaders(
     // |this| will be deleted.
     CleanUp();
   } else {
-    client_->OnReceiveResponse(std::move(pending_response));
+    client_->OnReceiveResponse(std::move(pending_response),
+                               mojo::ScopedDataPipeConsumerHandle());
   }
 }
 
diff --git a/patch/patches/chrome_browser_context_menus.patch b/patch/patches/chrome_browser_context_menus.patch
index ad690e572..6d9c4e67a 100644
--- a/patch/patches/chrome_browser_context_menus.patch
+++ b/patch/patches/chrome_browser_context_menus.patch
@@ -1,8 +1,8 @@
 diff --git chrome/browser/renderer_context_menu/render_view_context_menu.cc chrome/browser/renderer_context_menu/render_view_context_menu.cc
-index 0c42ba3e13fe9..2bb347fe9cd50 100644
+index a041fceb8e425..05cd500de13aa 100644
 --- chrome/browser/renderer_context_menu/render_view_context_menu.cc
 +++ chrome/browser/renderer_context_menu/render_view_context_menu.cc
-@@ -293,6 +293,13 @@ base::OnceCallback<void(RenderViewContextMenu*)>* GetMenuShownCallback() {
+@@ -294,6 +294,13 @@ base::OnceCallback<void(RenderViewContextMenu*)>* GetMenuShownCallback() {
    return callback.get();
  }
  
@@ -16,7 +16,7 @@ index 0c42ba3e13fe9..2bb347fe9cd50 100644
  enum class UmaEnumIdLookupType {
    GeneralEnumId,
    ContextSpecificEnumId,
-@@ -506,6 +513,10 @@ int FindUMAEnumValueForCommand(int id, UmaEnumIdLookupType type) {
+@@ -504,6 +511,10 @@ int FindUMAEnumValueForCommand(int id, UmaEnumIdLookupType type) {
    if (ContextMenuMatcher::IsExtensionsCustomCommandId(id))
      return 1;
  
@@ -27,7 +27,7 @@ index 0c42ba3e13fe9..2bb347fe9cd50 100644
    id = CollapseCommandsForUMA(id);
    const auto& map = GetIdcToUmaMap(type);
    auto it = map.find(id);
-@@ -697,6 +708,14 @@ RenderViewContextMenu::RenderViewContextMenu(
+@@ -695,6 +706,14 @@ RenderViewContextMenu::RenderViewContextMenu(
    system_app_ = GetBrowser() && GetBrowser()->app_controller()
                      ? GetBrowser()->app_controller()->system_app()
                      : nullptr;
@@ -42,7 +42,7 @@ index 0c42ba3e13fe9..2bb347fe9cd50 100644
  }
  
  RenderViewContextMenu::~RenderViewContextMenu() = default;
-@@ -1064,6 +1083,12 @@ void RenderViewContextMenu::InitMenu() {
+@@ -1062,6 +1081,12 @@ void RenderViewContextMenu::InitMenu() {
    // menu, meaning that each menu item added/removed in this function will cause
    // it to visibly jump on the screen (see b/173569669).
    AppendQuickAnswersItems();
@@ -55,7 +55,7 @@ index 0c42ba3e13fe9..2bb347fe9cd50 100644
  }
  
  Profile* RenderViewContextMenu::GetProfile() const {
-@@ -2893,6 +2918,12 @@ void RenderViewContextMenu::RegisterExecutePluginActionCallbackForTesting(
+@@ -2822,6 +2847,12 @@ void RenderViewContextMenu::RegisterExecutePluginActionCallbackForTesting(
    execute_plugin_action_callback_ = std::move(cb);
  }
  
diff --git a/patch/patches/chrome_browser_net_export.patch b/patch/patches/chrome_browser_net_export.patch
index 5ba24e27b..7af98c965 100644
--- a/patch/patches/chrome_browser_net_export.patch
+++ b/patch/patches/chrome_browser_net_export.patch
@@ -1,5 +1,5 @@
 diff --git chrome/browser/ui/BUILD.gn chrome/browser/ui/BUILD.gn
-index df174d7d1ec4d..8bb63dcc89f20 100644
+index c1f030ecb40ec..1ce574eac188f 100644
 --- chrome/browser/ui/BUILD.gn
 +++ chrome/browser/ui/BUILD.gn
 @@ -10,6 +10,7 @@ import("//build/config/features.gni")
@@ -29,7 +29,7 @@ index df174d7d1ec4d..8bb63dcc89f20 100644
      "//chrome:extra_resources",
      "//chrome:resources",
      "//chrome:strings",
-@@ -5209,6 +5215,7 @@ static_library("ui") {
+@@ -5210,6 +5216,7 @@ static_library("ui") {
    if (enable_basic_printing) {
      deps += [
        "//components/printing/browser",
diff --git a/patch/patches/chrome_runtime.patch b/patch/patches/chrome_runtime.patch
index aa7343f0a..8d7e05870 100644
--- a/patch/patches/chrome_runtime.patch
+++ b/patch/patches/chrome_runtime.patch
@@ -156,7 +156,7 @@ index dbd8f7ebe071d..b0f8d3d7bcff9 100644
 +#endif
  }
 diff --git chrome/browser/chrome_content_browser_client.cc chrome/browser/chrome_content_browser_client.cc
-index 70df7bef3a7b1..97d130a0a1be6 100644
+index db9c606e0ebc3..e08f55ee85c61 100644
 --- chrome/browser/chrome_content_browser_client.cc
 +++ chrome/browser/chrome_content_browser_client.cc
 @@ -28,6 +28,7 @@
@@ -167,7 +167,7 @@ index 70df7bef3a7b1..97d130a0a1be6 100644
  #include "chrome/browser/accessibility/accessibility_labels_service.h"
  #include "chrome/browser/accessibility/accessibility_labels_service_factory.h"
  #include "chrome/browser/after_startup_task_utils.h"
-@@ -3682,9 +3683,11 @@ void ChromeContentBrowserClient::BrowserURLHandlerCreated(
+@@ -3684,9 +3685,11 @@ void ChromeContentBrowserClient::BrowserURLHandlerCreated(
                            &search::HandleNewTabURLReverseRewrite);
  #endif  // BUILDFLAG(IS_ANDROID)
  
@@ -179,7 +179,7 @@ index 70df7bef3a7b1..97d130a0a1be6 100644
  }
  
  base::FilePath ChromeContentBrowserClient::GetDefaultDownloadDirectory() {
-@@ -5333,7 +5336,7 @@ void ChromeContentBrowserClient::OnNetworkServiceCreated(
+@@ -5338,7 +5341,7 @@ void ChromeContentBrowserClient::OnNetworkServiceCreated(
        network_service);
  }
  
@@ -188,7 +188,7 @@ index 70df7bef3a7b1..97d130a0a1be6 100644
      content::BrowserContext* context,
      bool in_memory,
      const base::FilePath& relative_partition_path,
-@@ -5351,6 +5354,8 @@ void ChromeContentBrowserClient::ConfigureNetworkContextParams(
+@@ -5356,6 +5359,8 @@ void ChromeContentBrowserClient::ConfigureNetworkContextParams(
      network_context_params->user_agent = GetUserAgentBasedOnPolicy(context);
      network_context_params->accept_language = GetApplicationLocale();
    }
@@ -198,10 +198,10 @@ index 70df7bef3a7b1..97d130a0a1be6 100644
  
  std::vector<base::FilePath>
 diff --git chrome/browser/chrome_content_browser_client.h chrome/browser/chrome_content_browser_client.h
-index 71dfd396b405e..879210ff7c8fd 100644
+index 87f0af8fb00cf..87332d3120c1a 100644
 --- chrome/browser/chrome_content_browser_client.h
 +++ chrome/browser/chrome_content_browser_client.h
-@@ -549,7 +549,7 @@ class ChromeContentBrowserClient : public content::ContentBrowserClient {
+@@ -550,7 +550,7 @@ class ChromeContentBrowserClient : public content::ContentBrowserClient {
        override;
    void OnNetworkServiceCreated(
        network::mojom::NetworkService* network_service) override;
diff --git a/patch/patches/content_2015.patch b/patch/patches/content_2015.patch
index 8a81848cb..6cac6455c 100644
--- a/patch/patches/content_2015.patch
+++ b/patch/patches/content_2015.patch
@@ -12,7 +12,7 @@ index ec6be2ff24d23..159ed7776c0aa 100644
                        GetContentClient()->browser()->GetUserAgent());
      version.SetString("V8-Version", V8_VERSION_STRING);
 diff --git content/browser/loader/navigation_url_loader_impl.cc content/browser/loader/navigation_url_loader_impl.cc
-index c1235f9658b88..040d9afb0d9ff 100644
+index b5c2dc992fb19..868661c86c39a 100644
 --- content/browser/loader/navigation_url_loader_impl.cc
 +++ content/browser/loader/navigation_url_loader_impl.cc
 @@ -665,6 +665,14 @@ NavigationURLLoaderImpl::PrepareForNonInterceptedRequest(
@@ -136,10 +136,10 @@ index b914cb91a2b49..2f84201ba4d1e 100644
    // started.
    virtual void SetRuntimeFeaturesDefaultsBeforeBlinkInitialization() {}
 diff --git content/renderer/render_thread_impl.cc content/renderer/render_thread_impl.cc
-index 03f9fac832072..1f45e54e32da9 100644
+index f6574e15fc0d3..380b80337da71 100644
 --- content/renderer/render_thread_impl.cc
 +++ content/renderer/render_thread_impl.cc
-@@ -640,6 +640,8 @@ void RenderThreadImpl::Init() {
+@@ -656,6 +656,8 @@ void RenderThreadImpl::Init() {
        GetContentClient()->renderer()->CreateURLLoaderThrottleProvider(
            blink::URLLoaderThrottleProviderType::kFrame);
  
diff --git a/patch/patches/embedder_product_override.patch b/patch/patches/embedder_product_override.patch
index 4d68c2beb..30c739742 100644
--- a/patch/patches/embedder_product_override.patch
+++ b/patch/patches/embedder_product_override.patch
@@ -1,5 +1,5 @@
 diff --git components/embedder_support/user_agent_utils.cc components/embedder_support/user_agent_utils.cc
-index a001f60b279ed..b0ee6283be54f 100644
+index 4c38233047000..4601ad9df744d 100644
 --- components/embedder_support/user_agent_utils.cc
 +++ components/embedder_support/user_agent_utils.cc
 @@ -15,6 +15,7 @@
@@ -7,13 +7,13 @@ index a001f60b279ed..b0ee6283be54f 100644
  #include "build/branding_buildflags.h"
  #include "build/build_config.h"
 +#include "cef/libcef/common/cef_switches.h"
+ #include "components/embedder_support/pref_names.h"
  #include "components/embedder_support/switches.h"
  #include "components/policy/core/common/policy_pref_names.h"
- #include "components/prefs/pref_service.h"
-@@ -276,6 +277,12 @@ blink::UserAgentBrandList GetBrandFullVersionList(
- }  // namespace
+@@ -353,6 +354,12 @@ std::string GetMajorVersionForUserAgentString(
  
- std::string GetProduct(const bool allow_version_override) {
+ std::string GetProduct(const bool allow_version_override,
+                        ForceMajorVersionToMinorPosition force_major_to_minor) {
 +  base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
 +  if (command_line->HasSwitch(switches::kUserAgentProductAndVersion)) {
 +    return command_line->GetSwitchValueASCII(
diff --git a/patch/patches/rwh_background_color_1984.patch b/patch/patches/rwh_background_color_1984.patch
index d23ddc473..cf23fbe02 100644
--- a/patch/patches/rwh_background_color_1984.patch
+++ b/patch/patches/rwh_background_color_1984.patch
@@ -1,5 +1,5 @@
 diff --git content/browser/renderer_host/render_widget_host_view_aura.cc content/browser/renderer_host/render_widget_host_view_aura.cc
-index 20d613c480ce5..1753448bff5ce 100644
+index 99f3ba03249b3..47566fd1ca43b 100644
 --- content/browser/renderer_host/render_widget_host_view_aura.cc
 +++ content/browser/renderer_host/render_widget_host_view_aura.cc
 @@ -5,6 +5,7 @@
diff --git a/patch/patches/webview_plugin_2020.patch b/patch/patches/webview_plugin_2020.patch
index ad8bc6c2f..8b57b7a1e 100644
--- a/patch/patches/webview_plugin_2020.patch
+++ b/patch/patches/webview_plugin_2020.patch
@@ -1,5 +1,5 @@
 diff --git chrome/app/generated_resources.grd chrome/app/generated_resources.grd
-index 2e9301625477b..d941840163cb1 100644
+index 9fa63decc3d89..0d9100be6b128 100644
 --- chrome/app/generated_resources.grd
 +++ chrome/app/generated_resources.grd
 @@ -5424,7 +5424,7 @@ Keep your key file in a safe place. You will need it to create new versions of y