For #5959 & #5958: Integrates download feature into Fenix (#6368)

app/src/main/AndroidManifest.xml

@@ -246,6 +246,16 @@
         <meta-data
             android:name="firebase_analytics_collection_enabled"
             android:value="false" />
+
+        <provider
+            android:name="androidx.core.content.FileProvider"
+            android:authorities="${applicationId}.fileprovider"
+            android:exported="false"
+            android:grantUriPermissions="true">
+            <meta-data
+                android:name="android.support.FILE_PROVIDER_PATHS"
+                android:resource="@xml/file_paths" />
+        </provider>
     </application>
 
 </manifest>

app/src/main/java/org/mozilla/fenix/browser/BaseBrowserFragment.kt

@@ -10,6 +10,7 @@ import android.content.pm.ActivityInfo
 import android.graphics.Color
 import android.graphics.drawable.ColorDrawable
 import android.os.Bundle
+import android.view.Gravity
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
@@ -74,6 +75,7 @@ import org.mozilla.fenix.components.toolbar.ToolbarIntegration
 import org.mozilla.fenix.downloads.DownloadService
 import org.mozilla.fenix.ext.components
 import org.mozilla.fenix.ext.enterToImmersiveMode
+import org.mozilla.fenix.ext.getDimenInDip
 import org.mozilla.fenix.ext.getRootView
 import org.mozilla.fenix.ext.metrics
 import org.mozilla.fenix.ext.nav
@@ -262,6 +264,13 @@ abstract class BaseBrowserFragment : Fragment(), BackHandler, SessionManager.Obs
                         context.applicationContext,
                         DownloadService::class
                     ),
+                    promptsStyling = DownloadsFeature.PromptsStyling(
+                        gravity = Gravity.BOTTOM,
+                        shouldWidthMatchParent = true,
+                        positiveButtonBackgroundColor = ThemeManager.resolveAttribute(R.attr.accent, context),
+                        positiveButtonTextColor = ThemeManager.resolveAttribute(R.attr.primaryText, context),
+                        positiveButtonRadius = context.getDimenInDip(R.dimen.tab_corner_radius)
+                    ),
                     onNeedToRequestPermissions = { permissions ->
                         requestPermissions(permissions, REQUEST_CODE_DOWNLOAD_PERMISSIONS)
                     }),

app/src/main/res/xml/file_paths.xml

@@ -0,0 +1,9 @@
+<!-- This Source Code Form is subject to the terms of the Mozilla Public
+   - License, v. 2.0. If a copy of the MPL was not distributed with this
+   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
+
+<paths>
+    <external-path
+        name="Download"
+        path="." />
+</paths>