Add PhysicalWebShareActivity

chrome/android/java/AndroidManifest.xml

Index: chrome/android/java/AndroidManifest.xml
diff --git a/chrome/android/java/AndroidManifest.xml b/chrome/android/java/AndroidManifest.xml
index b5b9a97aa9c4db1357f2f7c05663ec170e94cbf3..a45f50c798640f74e884d3a59e2dd28ad49ce0d9 100644
--- a/chrome/android/java/AndroidManifest.xml
+++ b/chrome/android/java/AndroidManifest.xml
@@ -631,6 +631,23 @@ by a child template that "extends" this file.
         <service android:name="org.chromium.chrome.browser.physicalweb.NearbyMessageIntentService"
             android:exported="false" />
 
+        <!-- This activity is to expose the PhysicalWeb Share option via the generic Android share action. -->
+        <activity
+            android:name="org.chromium.chrome.browser.physicalweb.PhysicalWebShareActivity"
+            android:icon="@drawable/physical_web_notification_large"
+            android:label="@string/physical_web_share_activity_title"
+            android:enabled="false"
+            android:excludeFromRecents="true"
+            android:noHistory="true"
+            android:theme="@android:style/Theme.NoDisplay"
+            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|mcc|mnc|screenLayout|smallestScreenSize" >
+            <intent-filter>
+                <action android:name="android.intent.action.SEND" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <data android:mimeType="text/plain" />
+            </intent-filter>
+        </activity>
+
         <!-- Providers for chrome data. -->
         <provider android:name="org.chromium.chrome.browser.provider.ChromeBrowserProvider"
             android:authorities="{{ manifest_package }}.ChromeBrowserProvider;{{ manifest_package }}.browser;{{ manifest_package }}"