Support file system access in DevTools with isolated file system.

content/browser/devtools/devtools_frontend_host.cc

Index: content/browser/devtools/devtools_frontend_host.cc
diff --git a/content/browser/devtools/devtools_frontend_host.cc b/content/browser/devtools/devtools_frontend_host.cc
index f16dcdfd1346a9a68a7f7dd11cd021d5098d0e3d..7a4ec7a080cc8112c77c01fb5b5c227cc8b9c2e5 100644
--- a/content/browser/devtools/devtools_frontend_host.cc
+++ b/content/browser/devtools/devtools_frontend_host.cc
@@ -70,6 +70,13 @@ bool DevToolsFrontendHost::OnMessageReceived(
     IPC_MESSAGE_HANDLER(DevToolsHostMsg_OpenInNewTab, OnOpenInNewTab)
     IPC_MESSAGE_HANDLER(DevToolsHostMsg_Save, OnSave)
     IPC_MESSAGE_HANDLER(DevToolsHostMsg_Append, OnAppend)
+    IPC_MESSAGE_HANDLER(DevToolsHostMsg_RequestFileSystemPermissions,
+                        OnRequestFileSystemPermissions)
+    IPC_MESSAGE_HANDLER(
+        DevToolsHostMsg_SelectFolderAndGrantFileSystemPermission,
+        OnSelectFolderAndGrantFileSystemPermission)
+    IPC_MESSAGE_HANDLER(DevToolsHostMsg_RevokeFileSystemPermission,
+                        OnRevokeFileSystemPermission)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
@@ -110,6 +117,19 @@ void DevToolsFrontendHost::OnAppend(
   delegate_->AppendToFile(url, content);
 }
 
+void DevToolsFrontendHost::OnRequestFileSystemPermissions() {
+  delegate_->RequestFileSystemPermissions();
+}
+
+void DevToolsFrontendHost::OnSelectFolderAndGrantFileSystemPermission() {
+  delegate_->SelectFolderAndGrantFileSystemPermission();
+}
+
+void DevToolsFrontendHost::OnRevokeFileSystemPermission(
+    const std::string& file_system_path) {
+  delegate_->RevokeFileSystemPermission(file_system_path);
+}
+
 void DevToolsFrontendHost::OnRequestSetDockSide(const std::string& side) {
   delegate_->SetDockSide(side);
 }