[WebLayer] Return TabSpecificContentSettingsDelegate.

Return a valid TabSpecificContentSettingsDelegate from
PageInfoControllerDelegateImpl and add a browsertest to verify the same.

Bug: 1052375
Change-Id: I60db31480fbefc46b48851891ffaa0d977c7fdc4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2170349
Commit-Queue: Mugdha Lakhani <nator@chromium.org>
Reviewed-by: Clark DuVall <cduvall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#763440}

weblayer/browser/url_bar/page_info_browsertest.cc

@@ -72,4 +72,13 @@ IN_PROC_BROWSER_TEST_F(PageInfoBrowserTest, PermissionStatus) {
                 .content_setting,
             CONTENT_SETTING_BLOCK);
 }
+
+IN_PROC_BROWSER_TEST_F(PageInfoBrowserTest,
+                       TabSpecificContentSettingsDelegate) {
+  std::unique_ptr<PageInfoDelegate> page_info_delegate =
+      page_info::GetPageInfoClient()->CreatePageInfoDelegate(GetWebContents());
+  ASSERT_TRUE(page_info_delegate);
+  EXPECT_TRUE(page_info_delegate->GetTabSpecificContentSettingsDelegate());
+}
+
 }  // namespace weblayer

weblayer/browser/url_bar/page_info_delegate_impl.cc

@@ -12,6 +12,7 @@
 #include "weblayer/browser/permissions/permission_decision_auto_blocker_factory.h"
 #include "weblayer/browser/permissions/permission_manager_factory.h"
 #include "weblayer/browser/stateful_ssl_host_state_delegate_factory.h"
+#include "weblayer/browser/tab_specific_content_settings_delegate.h"
 
 PageInfoDelegateImpl::PageInfoDelegateImpl(content::WebContents* web_contents)
     : web_contents_(web_contents) {
@@ -103,9 +104,8 @@ PageInfoDelegateImpl::GetVisibleSecurityState() {
 
 std::unique_ptr<content_settings::TabSpecificContentSettings::Delegate>
 PageInfoDelegateImpl::GetTabSpecificContentSettingsDelegate() {
-  // TODO(crbug.com/1052375): Implement.
-  NOTREACHED();
-  return nullptr;
+  return std::make_unique<weblayer::TabSpecificContentSettingsDelegate>(
+      web_contents_);
 }
 
 content::BrowserContext* PageInfoDelegateImpl::GetBrowserContext() const {