Add CobaltContentRendererClient

cobalt/BUILD.gn

@@ -45,6 +45,7 @@ if (!is_android) {
     defines = []
 
     deps = [
+      "//cobalt/renderer:renderer",
       "//cobalt/user_agent",
       "//content/public/app",
       "//content/shell:content_shell_app",

cobalt/android/BUILD.gn

@@ -168,6 +168,7 @@ shared_library("libcobalt_content_shell_content_view") {
   # TODO(b/375655377): remove testonly
   testonly = true
   deps = [
+    "//cobalt/renderer:renderer",
     "//cobalt/user_agent",
 
     # TODO: what can be removed in the dependencies?

cobalt/cobalt_main_delegate.cc

@@ -14,6 +14,7 @@
 
 #include "cobalt/cobalt_main_delegate.h"
 #include "cobalt/cobalt_content_browser_client.h"
+#include "cobalt/renderer/cobalt_content_renderer_client.h"
 #include "content/public/browser/render_frame_host.h"
 
 namespace cobalt {
@@ -29,6 +30,12 @@ CobaltMainDelegate::CreateContentBrowserClient() {
   return browser_client_.get();
 }
 
+content::ContentRendererClient*
+CobaltMainDelegate::CreateContentRendererClient() {
+  renderer_client_ = std::make_unique<CobaltContentRendererClient>();
+  return renderer_client_.get();
+}
+
 absl::optional<int> CobaltMainDelegate::PostEarlyInitialization(
     InvokedIn invoked_in) {
   content::RenderFrameHost::AllowInjectingJavaScript();

cobalt/cobalt_main_delegate.h

@@ -16,6 +16,7 @@
 #define COBALT_COBALT_MAIN_DELEGATE_H_
 
 #include "build/build_config.h"
+#include "cobalt/renderer/cobalt_content_renderer_client.h"
 #include "content/shell/app/shell_main_delegate.h"
 
 namespace cobalt {
@@ -29,9 +30,13 @@ class CobaltMainDelegate : public content::ShellMainDelegate {
 
   // ContentMainDelegate implementation:
   content::ContentBrowserClient* CreateContentBrowserClient() override;
+  content::ContentRendererClient* CreateContentRendererClient() override;
   absl::optional<int> PostEarlyInitialization(InvokedIn invoked_in) override;
 
   ~CobaltMainDelegate() override;
+
+ private:
+  std::unique_ptr<CobaltContentRendererClient> renderer_client_;
 };
 
 }  // namespace cobalt

cobalt/common/shell_switches.cc

@@ -0,0 +1,59 @@
+// Copyright 2025 The Cobalt Authors
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "cobalt/common/shell_switches.h"
+
+#include "base/command_line.h"
+
+namespace switches {
+
+// Makes Content Shell use the given path for its data directory.
+// NOTE: If changing this value, change the corresponding Java-side value in
+// ContentShellBrowserTestActivity.java#getUserDataDirectoryCommandLineSwitch()
+// to match.
+const char kContentShellDataPath[] = "data-path";
+
+// The directory breakpad should store minidumps in.
+const char kCrashDumpsDir[] = "crash-dumps-dir";
+
+// Disables the check for the system font when specified.
+const char kDisableSystemFontCheck[] = "disable-system-font-check";
+
+// Exposes the window.internals object to JavaScript for interactive development
+// and debugging of web tests that rely on it.
+const char kExposeInternalsForTesting[] = "expose-internals-for-testing";
+
+// Size for the content_shell's host window (i.e. "800x600").
+const char kContentShellHostWindowSize[] = "content-shell-host-window-size";
+
+// Hides toolbar from content_shell's host window.
+const char kContentShellHideToolbar[] = "content-shell-hide-toolbar";
+
+#if !BUILDFLAG(IS_ANDROID) && !BUILDFLAG(IS_IOS)
+// Let DevTools front-end talk to the target of type "tab" rather than
+// "frame" when inspecting a WebContents.
+const char kContentShellDevToolsTabTarget[] =
+    "content-shell-devtools-tab-target";
+#endif
+
+// Enables APIs guarded with the [IsolatedContext] IDL attribute for the given
+// comma-separated list of origins.
+const char kIsolatedContextOrigins[] = "isolated-context-origins";
+
+// Use the given address instead of the default loopback for accepting remote
+// debugging connections. Note that the remote debugging protocol does not
+// perform any authentication, so exposing it too widely can be a security
+// risk.
+const char kRemoteDebuggingAddress[] = "remote-debugging-address";
+
+// Runs Content Shell in web test mode, injecting test-only behaviour for
+// blink web tests.
+const char kRunWebTests[] = "run-web-tests";
+
+bool IsRunWebTestsSwitchPresent() {
+  return base::CommandLine::ForCurrentProcess()->HasSwitch(
+      switches::kRunWebTests);
+}
+
+}  // namespace switches

cobalt/common/shell_switches.h

@@ -0,0 +1,33 @@
+// Copyright 2025 The Cobalt Authors
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Defines all the Cobalt command-line switches.
+
+#ifndef COBALT_COMMON_SHELL_SWITCHES_H_
+#define COBALT_COMMON_SHELL_SWITCHES_H_
+
+#include "build/build_config.h"
+
+namespace switches {
+
+extern const char kContentShellDataPath[];
+extern const char kCrashDumpsDir[];
+extern const char kDisableSystemFontCheck[];
+extern const char kExposeInternalsForTesting[];
+extern const char kContentShellHostWindowSize[];
+extern const char kContentShellHideToolbar[];
+#if !BUILDFLAG(IS_ANDROID) && !BUILDFLAG(IS_IOS)
+extern const char kContentShellDevToolsTabTarget[];
+#endif
+extern const char kIsolatedContextOrigins[];
+extern const char kRemoteDebuggingAddress[];
+extern const char kRunWebTests[];
+
+// Helper that returns true if kRunWebTests is present in the command line,
+// meaning Content Shell is running in web test mode.
+bool IsRunWebTestsSwitchPresent();
+
+}  // namespace switches
+
+#endif  // COBALT_COMMON_SHELL_SWITCHES_H_

cobalt/renderer/BUILD.gn

@@ -0,0 +1,32 @@
+# Copyright 2025 The Cobalt Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+source_set("renderer") {
+  sources = [
+    "cobalt_content_renderer_client.cc",
+    "cobalt_content_renderer_client.h",
+  ]
+
+  deps = [
+    "//components/cdm/renderer",
+    "//components/network_hints/renderer",
+    "//components/web_cache/renderer",
+    "//content/public/common",
+    "//content/public/renderer",
+    "//content/test:content_test_mojo_bindings",
+    "//media/mojo:buildflags",
+    "//starboard:starboard_headers_only",
+    "//v8",
+  ]
+}