diff --git a/CHROMIUM_BUILD_COMPATIBILITY.txt b/CHROMIUM_BUILD_COMPATIBILITY.txt
index c94bc34fa..bc78cfd24 100644
--- a/CHROMIUM_BUILD_COMPATIBILITY.txt
+++ b/CHROMIUM_BUILD_COMPATIBILITY.txt
@@ -7,5 +7,5 @@
 # https://bitbucket.org/chromiumembedded/cef/wiki/BranchesAndBuilding
 
 {
-  'chromium_checkout': 'refs/tags/61.0.3163.79',
+  'chromium_checkout': 'refs/tags/61.0.3163.91',
 }
diff --git a/patch/patches/DEPS.patch b/patch/patches/DEPS.patch
index de349e902..5f65ce12c 100644
--- a/patch/patches/DEPS.patch
+++ b/patch/patches/DEPS.patch
@@ -1,5 +1,5 @@
 diff --git DEPS DEPS
-index 64d6cfe9f8b3..37c1d8501077 100644
+index 0139fde15203..c4c89809dfad 100644
 --- DEPS
 +++ DEPS
 @@ -644,20 +644,22 @@ hooks = [
diff --git a/patch/patches/content_1129_2015.patch b/patch/patches/content_1129_2015.patch
index 513edb8ea..eb768b446 100644
--- a/patch/patches/content_1129_2015.patch
+++ b/patch/patches/content_1129_2015.patch
@@ -279,10 +279,10 @@ index 85b64dad4b90..e77f1bb5a1c2 100644
                       const std::string& mime_type,
                       bool allow_wildcard,
 diff --git content/common/frame_messages.h content/common/frame_messages.h
-index da541c99666f..5cd14c981e0f 100644
+index 80dbf7c11827..695fc9595fa2 100644
 --- content/common/frame_messages.h
 +++ content/common/frame_messages.h
-@@ -1325,8 +1325,9 @@ IPC_MESSAGE_ROUTED1(FrameHostMsg_PepperStopsPlayback,
+@@ -1330,8 +1330,9 @@ IPC_MESSAGE_ROUTED1(FrameHostMsg_PepperStopsPlayback,
  
  // Used to get the list of plugins. |main_frame_origin| is used to handle
  // exceptions for plugin content settings.
@@ -293,7 +293,7 @@ index da541c99666f..5cd14c981e0f 100644
                              url::Origin /* main_frame_origin */,
                              std::vector<content::WebPluginInfo> /* plugins */)
  
-@@ -1334,9 +1335,10 @@ IPC_SYNC_MESSAGE_CONTROL2_1(FrameHostMsg_GetPlugins,
+@@ -1339,9 +1340,10 @@ IPC_SYNC_MESSAGE_CONTROL2_1(FrameHostMsg_GetPlugins,
  // type. If there is no matching plugin, |found| is false.
  // |actual_mime_type| is the actual mime type supported by the
  // found plugin.
@@ -305,7 +305,7 @@ index da541c99666f..5cd14c981e0f 100644
                              url::Origin /* main_frame_origin */,
                              std::string /* mime_type */,
                              bool /* found */,
-@@ -1717,9 +1719,9 @@ IPC_MESSAGE_ROUTED3(FrameHostMsg_FindMatchRects_Reply,
+@@ -1722,9 +1724,9 @@ IPC_MESSAGE_ROUTED3(FrameHostMsg_FindMatchRects_Reply,
  IPC_MESSAGE_ROUTED2(FrameHostMsg_GetNearestFindResult_Reply,
                      int /* nfr_request_id */,
                      float /* distance */)
@@ -429,10 +429,10 @@ index 48b932e878e3..80110f9efcbb 100644
    virtual void FocusedNodeChanged(const blink::WebNode& node) {}
  
 diff --git content/renderer/render_frame_impl.cc content/renderer/render_frame_impl.cc
-index 7b56c01f25af..497cd8e97a71 100644
+index ab1029fcda01..c1f89724da69 100644
 --- content/renderer/render_frame_impl.cc
 +++ content/renderer/render_frame_impl.cc
-@@ -2898,7 +2898,8 @@ blink::WebPlugin* RenderFrameImpl::CreatePlugin(
+@@ -2899,7 +2899,8 @@ blink::WebPlugin* RenderFrameImpl::CreatePlugin(
    std::string mime_type;
    bool found = false;
    Send(new FrameHostMsg_GetPluginInfo(
@@ -442,7 +442,7 @@ index 7b56c01f25af..497cd8e97a71 100644
        params.mime_type.Utf8(), &found, &info, &mime_type));
    if (!found)
      return nullptr;
-@@ -3206,6 +3207,8 @@ void RenderFrameImpl::FrameDetached(blink::WebLocalFrame* frame,
+@@ -3207,6 +3208,8 @@ void RenderFrameImpl::FrameDetached(blink::WebLocalFrame* frame,
  
  void RenderFrameImpl::FrameFocused() {
    Send(new FrameHostMsg_FrameFocused(routing_id_));
@@ -451,7 +451,7 @@ index 7b56c01f25af..497cd8e97a71 100644
  }
  
  void RenderFrameImpl::WillCommitProvisionalLoad() {
-@@ -5339,9 +5342,8 @@ WebNavigationPolicy RenderFrameImpl::DecidePolicyForNavigation(
+@@ -5360,9 +5363,8 @@ WebNavigationPolicy RenderFrameImpl::DecidePolicyForNavigation(
         (!IsBrowserSideNavigationEnabled() ||
          url != pending_navigation_params_->request_params.redirects[0]));
  
@@ -463,7 +463,7 @@ index 7b56c01f25af..497cd8e97a71 100644
    // The handlenavigation API is deprecated and will be removed once
    // crbug.com/325351 is resolved.
    if (GetContentClient()->renderer()->HandleNavigation(
-@@ -5354,7 +5356,6 @@ WebNavigationPolicy RenderFrameImpl::DecidePolicyForNavigation(
+@@ -5375,7 +5377,6 @@ WebNavigationPolicy RenderFrameImpl::DecidePolicyForNavigation(
      }
      return blink::kWebNavigationPolicyIgnore;
    }
diff --git a/patch/patches/views_widget_180_1481_1565_1677_1749.patch b/patch/patches/views_widget_180_1481_1565_1677_1749.patch
index bc2e28f44..a68417a43 100644
--- a/patch/patches/views_widget_180_1481_1565_1677_1749.patch
+++ b/patch/patches/views_widget_180_1481_1565_1677_1749.patch
@@ -374,10 +374,10 @@ index 63fcb9d611e8..7237ae60007f 100644
      // the NativeWidget may specify a default size. If the parent is specified,
      // |bounds| is in the parent's coordinate system. If the parent is not
 diff --git ui/views/win/hwnd_message_handler.cc ui/views/win/hwnd_message_handler.cc
-index d74ed45367cb..d081b8172d54 100644
+index d8086d862d59..5c9c498b1052 100644
 --- ui/views/win/hwnd_message_handler.cc
 +++ ui/views/win/hwnd_message_handler.cc
-@@ -2655,8 +2655,12 @@ LRESULT HWNDMessageHandler::HandleMouseEventInternal(UINT message,
+@@ -2660,8 +2660,12 @@ LRESULT HWNDMessageHandler::HandleMouseEventInternal(UINT message,
      active_mouse_tracking_flags_ = 0;
    } else if (event.type() == ui::ET_MOUSEWHEEL) {
      // Reroute the mouse wheel to the window under the pointer if applicable.
diff --git a/patch/patches/web_contents_1257_1565.patch b/patch/patches/web_contents_1257_1565.patch
index c8b663a37..f84efc09e 100644
--- a/patch/patches/web_contents_1257_1565.patch
+++ b/patch/patches/web_contents_1257_1565.patch
@@ -1,5 +1,5 @@
 diff --git content/browser/web_contents/web_contents_impl.cc content/browser/web_contents/web_contents_impl.cc
-index 7e017d13be52..e9b22ba5ab86 100644
+index d927e85156ef..99f940eca2a2 100644
 --- content/browser/web_contents/web_contents_impl.cc
 +++ content/browser/web_contents/web_contents_impl.cc
 @@ -1699,6 +1699,12 @@ void WebContentsImpl::Init(const WebContents::CreateParams& params) {
@@ -23,7 +23,7 @@ index 7e017d13be52..e9b22ba5ab86 100644
  
    if (browser_plugin_guest_ && !GuestMode::IsCrossProcessFrameGuest(this)) {
      view_.reset(new WebContentsViewGuest(this, browser_plugin_guest_.get(),
-@@ -2273,6 +2280,15 @@ void WebContentsImpl::CreateNewWindow(
+@@ -2280,6 +2287,15 @@ void WebContentsImpl::CreateNewWindow(
    create_params.renderer_initiated_creation =
        main_frame_route_id != MSG_ROUTING_NONE;
  
@@ -39,7 +39,7 @@ index 7e017d13be52..e9b22ba5ab86 100644
    WebContentsImpl* new_contents = NULL;
    if (!is_guest) {
      create_params.context = view_->GetNativeView();
-@@ -2302,7 +2318,7 @@ void WebContentsImpl::CreateNewWindow(
+@@ -2309,7 +2325,7 @@ void WebContentsImpl::CreateNewWindow(
        // TODO(brettw): It seems bogus that we have to call this function on the
        // newly created object and give it one of its own member variables.
        new_view->CreateViewForWidget(
@@ -48,7 +48,7 @@ index 7e017d13be52..e9b22ba5ab86 100644
      }
      // Save the created window associated with the route so we can show it
      // later.
-@@ -5380,7 +5396,7 @@ InterstitialPageImpl* WebContentsImpl::GetInterstitialForRenderManager() {
+@@ -5387,7 +5403,7 @@ InterstitialPageImpl* WebContentsImpl::GetInterstitialForRenderManager() {
  void WebContentsImpl::CreateRenderWidgetHostViewForRenderManager(
      RenderViewHost* render_view_host) {
    RenderWidgetHostViewBase* rwh_view =