Add initial support for runtime permissions in android M.

After clicking the "Allow" button in the infobars, Chrome will request
the permission if required from Android.

BUG=496447

Review URL: https://codereview.chromium.org/1164973003

Cr-Commit-Position: refs/heads/master@{#333663}

2 files changed, 6 insertions, 0 deletions

diff --git a/components/infobars/core/infobar_delegate.cc b/components/infobars/core/infobar_delegate.cc
index 37fbdf7..d9f7655 100644
--- a/components/infobars/core/infobar_delegate.cc
+++ b/components/infobars/core/infobar_delegate.cc
@@ -68,6 +68,10 @@ NativeAppInfoBarDelegate* InfoBarDelegate::AsNativeAppInfoBarDelegate() {
   return nullptr;
 }
 
+PermissionInfobarDelegate* InfoBarDelegate::AsPermissionInfobarDelegate() {
+  return nullptr;
+}
+
 PopupBlockedInfoBarDelegate* InfoBarDelegate::AsPopupBlockedInfoBarDelegate() {
   return nullptr;
 }
diff --git a/components/infobars/core/infobar_delegate.h b/components/infobars/core/infobar_delegate.h
index ec6cd82..4c1e234 100644
--- a/components/infobars/core/infobar_delegate.h
+++ b/components/infobars/core/infobar_delegate.h
@@ -14,6 +14,7 @@ class ConfirmInfoBarDelegate;
 class InsecureContentInfoBarDelegate;
 class MediaStreamInfoBarDelegate;
 class NativeAppInfoBarDelegate;
+class PermissionInfobarDelegate;
 class PopupBlockedInfoBarDelegate;
 class RegisterProtocolHandlerInfoBarDelegate;
 class ScreenCaptureInfoBarDelegate;
@@ -114,6 +115,7 @@ class InfoBarDelegate {
   virtual InsecureContentInfoBarDelegate* AsInsecureContentInfoBarDelegate();
   virtual MediaStreamInfoBarDelegate* AsMediaStreamInfoBarDelegate();
   virtual NativeAppInfoBarDelegate* AsNativeAppInfoBarDelegate();
+  virtual PermissionInfobarDelegate* AsPermissionInfobarDelegate();
   virtual PopupBlockedInfoBarDelegate* AsPopupBlockedInfoBarDelegate();
   virtual RegisterProtocolHandlerInfoBarDelegate*
       AsRegisterProtocolHandlerInfoBarDelegate();