Introduce DiagnosticsUI::BindInterface method for SystemDataProvider

This change introduces a DiagnosticsUI::BindInterface specialization
for SystemDataProvider.

Bug: 1128204
Change-Id: I565ad6a77761004de132cb7ca8884d4b50db4289
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2495796Reviewed-by: Zentaro Kavanagh <zentaro@chromium.org>
Commit-Queue: Bailey Berro <baileyberro@chromium.org>
Cr-Commit-Position: refs/heads/master@{#821393}

chromeos/components/diagnostics_ui/diagnostics_ui.cc

@@ -8,6 +8,9 @@
 
 #include "base/containers/span.h"
 #include "base/memory/ptr_util.h"
+#include "chromeos/components/diagnostics_ui/backend/diagnostics_manager.h"
+#include "chromeos/components/diagnostics_ui/backend/system_data_provider.h"
+#include "chromeos/components/diagnostics_ui/mojom/system_data_provider.mojom.h"
 #include "chromeos/components/diagnostics_ui/url_constants.h"
 #include "chromeos/grit/chromeos_diagnostics_app_resources.h"
 #include "chromeos/grit/chromeos_diagnostics_app_resources_map.h"
@@ -78,7 +81,9 @@ void SetUpWebUIDataSource(content::WebUIDataSource* source,
 }  // namespace
 
 DiagnosticsUI::DiagnosticsUI(content::WebUI* web_ui)
-    : ui::MojoWebUIController(web_ui) {
+    : ui::MojoWebUIController(web_ui),
+      diagnostics_manager_(
+          std::make_unique<diagnostics::DiagnosticsManager>()) {
   auto html_source = base::WrapUnique(
       content::WebUIDataSource::Create(kChromeUIDiagnosticsAppHost));
   html_source->OverrideContentSecurityPolicy(
@@ -97,4 +102,15 @@ DiagnosticsUI::DiagnosticsUI(content::WebUI* web_ui)
 
 DiagnosticsUI::~DiagnosticsUI() = default;
 
+void DiagnosticsUI::BindInterface(
+    mojo::PendingReceiver<diagnostics::mojom::SystemDataProvider> receiver) {
+  diagnostics::SystemDataProvider* system_data_provider =
+      diagnostics_manager_->GetSystemDataProvider();
+  if (system_data_provider) {
+    system_data_provider->BindInterface(std::move(receiver));
+  }
+}
+
+WEB_UI_CONTROLLER_TYPE_IMPL(DiagnosticsUI)
+
 }  // namespace chromeos

chromeos/components/diagnostics_ui/diagnostics_ui.h

@@ -5,6 +5,9 @@
 #ifndef CHROMEOS_COMPONENTS_DIAGNOSTICS_UI_DIAGNOSTICS_UI_H_
 #define CHROMEOS_COMPONENTS_DIAGNOSTICS_UI_DIAGNOSTICS_UI_H_
 
+#include "base/macros.h"
+#include "chromeos/components/diagnostics_ui/mojom/system_data_provider.mojom-forward.h"
+#include "mojo/public/cpp/bindings/pending_receiver.h"
 #include "ui/webui/mojo_web_ui_controller.h"
 
 namespace content {
@@ -12,6 +15,11 @@ class WebUI;
 }  // namespace content
 
 namespace chromeos {
+namespace diagnostics {
+
+class DiagnosticsManager;
+
+}  // namespace diagnostics
 
 // The WebUI for chrome://diagnostics.
 class DiagnosticsUI : public ui::MojoWebUIController {
@@ -21,6 +29,14 @@ class DiagnosticsUI : public ui::MojoWebUIController {
 
   DiagnosticsUI(const DiagnosticsUI&) = delete;
   DiagnosticsUI& operator=(const DiagnosticsUI&) = delete;
+
+  void BindInterface(
+      mojo::PendingReceiver<diagnostics::mojom::SystemDataProvider> receiver);
+
+ private:
+  WEB_UI_CONTROLLER_TYPE_DECL();
+
+  std::unique_ptr<diagnostics::DiagnosticsManager> diagnostics_manager_;
 };
 
 }  // namespace chromeos