Implement HasPermission() method in PermissionService.

content/browser/permissions/permission_service_context.cc

Index: content/browser/permissions/permission_service_context.cc
diff --git a/content/browser/permissions/permission_service_context.cc b/content/browser/permissions/permission_service_context.cc
index 2c7e91b968458265036ccae92049e97481b99138..50c73a92e382a46af2805b9bab29a6c4238c878c 100644
--- a/content/browser/permissions/permission_service_context.cc
+++ b/content/browser/permissions/permission_service_context.cc
@@ -7,6 +7,7 @@
 #include "content/browser/permissions/permission_service_impl.h"
 #include "content/public/browser/navigation_details.h"
 #include "content/public/browser/render_frame_host.h"
+#include "content/public/browser/render_process_host.h"
 #include "content/public/browser/web_contents.h"
 
 namespace content {
@@ -14,7 +15,15 @@ namespace content {
 PermissionServiceContext::PermissionServiceContext(
     RenderFrameHost* render_frame_host)
     : WebContentsObserver(WebContents::FromRenderFrameHost(render_frame_host)),
-      render_frame_host_(render_frame_host) {
+      render_frame_host_(render_frame_host),
+      render_process_host_(nullptr) {
+}
+
+PermissionServiceContext::PermissionServiceContext(
+    RenderProcessHost* render_process_host)
+    : WebContentsObserver(nullptr),
+      render_frame_host_(nullptr),
+      render_process_host_(render_process_host) {
 }
 
 PermissionServiceContext::~PermissionServiceContext() {
@@ -60,4 +69,17 @@ void PermissionServiceContext::CancelPendingRequests(
     service->CancelPendingRequests();
 }
 
+BrowserContext* PermissionServiceContext::GetBrowserContext() const {
+  if (!web_contents()) {
+    DCHECK(render_process_host_);
+    return render_process_host_->GetBrowserContext();
+  }
+  return web_contents()->GetBrowserContext();
+}
+
+GURL PermissionServiceContext::GetEmbeddingOrigin() const {
+  return web_contents() ? web_contents()->GetLastCommittedURL().GetOrigin()
+                        : GURL();
+}
+
 } // namespace content