Enable AllowDownloadResumptionWithoutStrongValidators on Android

BUG=965215

Change-Id: I06b867c8adcdeae00dcde4d603e0e16eb0a0820d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1869020
Commit-Queue: Min Qin <qinmin@chromium.org>
Reviewed-by: Xing Liu <xingliu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#707999}

components/download/public/common/download_features.cc

@@ -44,7 +44,12 @@ const base::Feature kUseInProgressDownloadManagerForDownloadService{
 
 const base::Feature kAllowDownloadResumptionWithoutStrongValidators{
   "AllowDownloadResumptionWithoutStrongValidators",
-    base::FEATURE_DISABLED_BY_DEFAULT};
+#if defined(OS_ANDROID)
+      base::FEATURE_ENABLED_BY_DEFAULT
+#else
+      base::FEATURE_DISABLED_BY_DEFAULT
+#endif
+};
 
 const base::Feature kUseParallelRequestsForUnknwonRangeSupport{
     "UseParallelRequestForUnknownRangeSupport",

content/browser/download/download_browsertest.cc

@@ -794,6 +794,12 @@ class TestRequestPauseHandler {
 };
 
 class DownloadContentTest : public ContentBrowserTest {
+ public:
+  DownloadContentTest() {
+    feature_list_.InitAndDisableFeature(
+        download::features::kAllowDownloadResumptionWithoutStrongValidators);
+  }
+
  protected:
   void SetUpOnMainThread() override {
     ASSERT_TRUE(downloads_directory_.CreateUniqueTempDir());
@@ -1018,6 +1024,7 @@ class DownloadContentTest : public ContentBrowserTest {
   std::unique_ptr<TestShellDownloadManagerDelegate> test_delegate_;
   TestDownloadResponseHandler test_response_handler_;
   TestDownloadHttpResponse::InjectErrorCallback inject_error_callback_;
+  base::test::ScopedFeatureList feature_list_;
 };
 
 constexpr int kValidationLength = 1024;