[CastWebService] Add storage cleaning logic into CastWebService.

Move storage cleaning logic from CastDemoService and ManagedModeService
to CastWebService in the upstream. Therefore those two classes no longer
need to depend on content/browser/browser_context and a few other
things.

Merge-With: eureka-internal/342450

Bug: b/144316586
Test: CQ
Change-Id: Id5908d78207003c22f306e739d5272cee774aa7c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1956105Reviewed-by: Sean Topping <seantopping@chromium.org>
Commit-Queue: Zhaoxin Liang <zxliang@google.com>
Cr-Commit-Position: refs/heads/master@{#723576}

chromecast/browser/BUILD.gn

@@ -214,6 +214,7 @@ cast_source_set("browser") {
     "//media/mojo/services:media_manifest",
     "//net",
     "//services/media_session/public/mojom",
+    "//services/network/public/mojom",
     "//services/service_manager/public/cpp",
     "//ui/base",
     "//ui/compositor",

chromecast/browser/cast_web_service.cc

@@ -6,6 +6,7 @@
 
 #include <algorithm>
 #include <memory>
+#include <utility>
 
 #include "base/bind.h"
 #include "base/location.h"
@@ -17,12 +18,26 @@
 #include "chromecast/browser/cast_web_view_default.h"
 #include "chromecast/browser/cast_web_view_factory.h"
 #include "chromecast/chromecast_buildflags.h"
+#include "content/public/browser/browser_context.h"
 #include "content/public/browser/media_session.h"
 #include "content/public/browser/site_instance.h"
+#include "content/public/browser/storage_partition.h"
 #include "content/public/browser/web_contents.h"
+#include "services/network/public/mojom/cookie_manager.mojom.h"
 
 namespace chromecast {
 
+namespace {
+
+uint32_t mask = content::StoragePartition::REMOVE_DATA_MASK_APPCACHE |
+                content::StoragePartition::REMOVE_DATA_MASK_COOKIES |
+                content::StoragePartition::REMOVE_DATA_MASK_FILE_SYSTEMS |
+                content::StoragePartition::REMOVE_DATA_MASK_INDEXEDDB |
+                content::StoragePartition::REMOVE_DATA_MASK_LOCAL_STORAGE |
+                content::StoragePartition::REMOVE_DATA_MASK_WEBSQL;
+
+}  // namespace
+
 CastWebService::CastWebService(content::BrowserContext* browser_context,
                                CastWebViewFactory* web_view_factory,
                                CastWindowManager* window_manager)
@@ -68,6 +83,33 @@ CastWebView::Scoped CastWebService::CreateWebView(
   return scoped;
 }
 
+void CastWebService::FlushDomLocalStorage() {
+  content::BrowserContext::ForEachStoragePartition(
+      browser_context_,
+      base::BindRepeating([](content::StoragePartition* storage_partition) {
+        DVLOG(1) << "Starting DOM localStorage flush.";
+        storage_partition->Flush();
+      }));
+}
+
+void CastWebService::ClearLocalStorage(base::OnceClosure callback) {
+  content::BrowserContext::ForEachStoragePartition(
+      browser_context_,
+      base::BindRepeating(
+          [](base::OnceClosure cb, content::StoragePartition* partition) {
+            auto cookie_delete_filter =
+                network::mojom::CookieDeletionFilter::New();
+            cookie_delete_filter->session_control =
+                network::mojom::CookieDeletionSessionControl::IGNORE_CONTROL;
+            partition->ClearData(
+                mask, content::StoragePartition::QUOTA_MANAGED_STORAGE_MASK_ALL,
+                content::StoragePartition::OriginMatcherFunction(),
+                std::move(cookie_delete_filter), true /*perform_cleanup*/,
+                base::Time::Min(), base::Time::Max(), std::move(cb));
+          },
+          base::Passed(std::move(callback))));
+}
+
 void CastWebService::OwnerDestroyed(CastWebView* web_view) {
   DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
   content::WebContents* web_contents = web_view->web_contents();

chromecast/browser/cast_web_service.h

@@ -7,6 +7,7 @@
 
 #include <memory>
 
+#include "base/callback.h"
 #include "base/containers/flat_set.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
@@ -20,6 +21,7 @@ class SequencedTaskRunner;
 
 namespace content {
 class BrowserContext;
+class StoragePartition;
 }  // namespace content
 
 namespace chromecast {
@@ -50,6 +52,12 @@ class CastWebService {
   std::unique_ptr<CastContentWindow> CreateWindow(
       const CastContentWindow::CreateParams& params);
 
+  void FlushDomLocalStorage();
+
+  // |callback| is called when data deletion is done or at least the deletion
+  // is scheduled.
+  void ClearLocalStorage(base::OnceClosure callback);
+
  private:
   void OwnerDestroyed(CastWebView* web_view);
   void DeleteWebView(CastWebView* web_view);