Cross-origin isolate Terminal to allow SharedArrayBuffer

SharedArrayBuffer is required for wasm ssh.

Bug: 1350479
Change-Id: I70b09baf8fa19450dafdf385e60844ea3bf183e6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3812982
Commit-Queue: Joel Hockey <joelhockey@chromium.org>
Reviewed-by: Dominic Schulz <dominicschulz@google.com>
Cr-Commit-Position: refs/heads/main@{#1032422}

chrome/browser/ash/web_applications/terminal_source.cc

@@ -235,3 +235,13 @@ std::string TerminalSource::GetContentSecurityPolicy(
       return content::URLDataSource::GetContentSecurityPolicy(directive);
   }
 }
+
+// Required for wasm SharedArrayBuffer.
+std::string TerminalSource::GetCrossOriginOpenerPolicy() {
+  return "same-origin";
+}
+
+// Required for wasm SharedArrayBuffer.
+std::string TerminalSource::GetCrossOriginEmbedderPolicy() {
+  return "require-corp";
+}

chrome/browser/ash/web_applications/terminal_source.h

@@ -46,6 +46,8 @@ class TerminalSource : public content::URLDataSource {
   const ui::TemplateReplacements* GetReplacements() override;
   std::string GetContentSecurityPolicy(
       network::mojom::CSPDirectiveName directive) override;
+  std::string GetCrossOriginOpenerPolicy() override;
+  std::string GetCrossOriginEmbedderPolicy() override;
 
   Profile* profile_;
   std::string source_;