Update permission bubble anchor when omnibar is hidden

chrome/browser/ui/views/website_settings/permissions_bubble_view.cc

Index: chrome/browser/ui/views/website_settings/permissions_bubble_view.cc
diff --git a/chrome/browser/ui/views/website_settings/permissions_bubble_view.cc b/chrome/browser/ui/views/website_settings/permissions_bubble_view.cc
index 1bf465a5a919e62c962bdd7ecf46be4c7c8225bb..fb09a56e0c49db494c3d1a4f5ec9051c1c948768 100644
--- a/chrome/browser/ui/views/website_settings/permissions_bubble_view.cc
+++ b/chrome/browser/ui/views/website_settings/permissions_bubble_view.cc
@@ -16,6 +16,7 @@
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/gfx/text_constants.h"
 #include "ui/views/bubble/bubble_delegate.h"
+#include "ui/views/bubble/bubble_frame_view.h"
 #include "ui/views/controls/button/checkbox.h"
 #include "ui/views/controls/button/label_button.h"
 #include "ui/views/controls/button/label_button_border.h"
@@ -140,7 +141,8 @@ class PermissionsBubbleDelegateView : public views::BubbleDelegateView,
                                       public PermissionCombobox::Listener {
  public:
   PermissionsBubbleDelegateView(
-      views::View* anchor,
+      views::View* anchor_view,
+      views::BubbleBorder::Arrow anchor_arrow,
       PermissionBubbleViewViews* owner,
       const std::string& languages,
       const std::vector<PermissionBubbleRequest*>& requests,
@@ -163,6 +165,11 @@ class PermissionsBubbleDelegateView : public views::BubbleDelegateView,
   // PermissionCombobox::Listener:
   void PermissionSelectionChanged(int index, bool allowed) override;
 
+  // Updates the anchor's arrow and view. Also repositions the bubble so it's
+  // displayed in the correct location.
+  void UpdateAnchor(views::View* anchor_view,
+                    views::BubbleBorder::Arrow anchor_arrow);
+
  private:
   PermissionBubbleViewViews* owner_;
   views::Button* allow_;
@@ -176,12 +183,13 @@ class PermissionsBubbleDelegateView : public views::BubbleDelegateView,
 };
 
 PermissionsBubbleDelegateView::PermissionsBubbleDelegateView(
-    views::View* anchor,
+    views::View* anchor_view,
+    views::BubbleBorder::Arrow anchor_arrow,
     PermissionBubbleViewViews* owner,
     const std::string& languages,
     const std::vector<PermissionBubbleRequest*>& requests,
     const std::vector<bool>& accept_state)
-    : views::BubbleDelegateView(anchor, views::BubbleBorder::TOP_LEFT),
+    : views::BubbleDelegateView(anchor_view, anchor_arrow),
       owner_(owner),
       allow_(NULL),
       deny_(NULL),
@@ -349,13 +357,31 @@ void PermissionsBubbleDelegateView::PermissionSelectionChanged(
   owner_->Toggle(index, allowed);
 }
 
+void PermissionsBubbleDelegateView::UpdateAnchor(
+    views::View* anchor_view,
+    views::BubbleBorder::Arrow anchor_arrow) {
+  set_arrow(anchor_arrow);
+
+  // Update the border in the bubble: will either add or remove the arrow.
+  views::BubbleFrameView* frame =
+      views::BubbleDelegateView::GetBubbleFrameView();
+  views::BubbleBorder::Arrow adjusted_arrow = anchor_arrow;
+  if (base::i18n::IsRTL())
+    adjusted_arrow = views::BubbleBorder::horizontal_mirror(adjusted_arrow);
+  frame->SetBubbleBorder(scoped_ptr<views::BubbleBorder>(
+      new views::BubbleBorder(adjusted_arrow, shadow(), color())));
+
+  // Reposition the bubble based on the updated arrow and view.
+  SetAnchorView(anchor_view);
+}
+
 //////////////////////////////////////////////////////////////////////////////
 // PermissionBubbleViewViews
 
 PermissionBubbleViewViews::PermissionBubbleViewViews(
-    views::View* anchor_view,
     const std::string& languages)
-    : anchor_view_(anchor_view),
+    : anchor_view_(nullptr),
+      anchor_arrow_(views::BubbleBorder::NONE),
       delegate_(NULL),
       bubble_delegate_(NULL),
       languages_(languages) {}
@@ -365,6 +391,18 @@ PermissionBubbleViewViews::~PermissionBubbleViewViews() {
     delegate_->SetView(NULL);
 }
 
+void PermissionBubbleViewViews::SetAnchor(
+    views::View* view,
+    views::BubbleBorder::Arrow arrow) {
+  // These values will be used to create any new bubble.
+  anchor_view_ = view;
+  anchor_arrow_ = arrow;
+
+  // If there is a bubble visible, it should be updated.
+  if (IsVisible())
+    bubble_delegate_->UpdateAnchor(view, arrow);
+}
+
 void PermissionBubbleViewViews::SetDelegate(Delegate* delegate) {
   delegate_ = delegate;
 }
@@ -376,8 +414,8 @@ void PermissionBubbleViewViews::Show(
     bubble_delegate_->Close();
 
   bubble_delegate_ =
-      new PermissionsBubbleDelegateView(anchor_view_, this, languages_,
-                                        requests, values);
+      new PermissionsBubbleDelegateView(anchor_view_, anchor_arrow_, this,
+                                        languages_, requests, values);
   views::BubbleDelegateView::CreateBubble(bubble_delegate_)->Show();
   bubble_delegate_->SizeToContents();
 }