[Android] Add a transparent Activity in Chrome to handle Browser Action Intent

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 2f2c10b542e35502c23696365fd7d286db3f3f11..5f0ed360b01fc7de0dd22bacb57ee505ecdc111e 100644
--- a/chrome/android/java/AndroidManifest.xml
+++ b/chrome/android/java/AndroidManifest.xml
@@ -604,6 +604,21 @@ by a child template that "extends" this file.
             android:configChanges="orientation|keyboardHidden|keyboard|screenSize|mcc|mnc|screenLayout|smallestScreenSize" >
         </activity>
 
+        <!-- Activities for Browser Actions -->
+        {% if channel in ['default'] %}
+        <activity android:name="org.chromium.chrome.browser.browseractions.BrowserActionActivity"
+            android:theme="@style/FullscreenTransparentActivityTheme"

[Ted C, 2017/04/24 20:23:17]

any reason we don't use @android:style/Theme.Translucent.NoTitleBar here?

[ltian, 2017/04/24 23:59:28]

The BrowserActionActivity extends AsyncInitializationActivity which needs an
AppCompat theme and I cannot find a transparent + no title bar theme from
AppCompat theme. The FullscreenTransparentActivityTheme extends
Theme.AppCompat.Light.

+            android:exported="true"
+            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|mcc|mnc|screenLayout|smallestScreenSize">
+            <intent-filter>
+                <action android:name="android.support.customtabs.browseractions.browser_action_open" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <data android:scheme="http" />
+                <data android:scheme="https" />
+            </intent-filter>
+        </activity>
+        {% endif %}
+
         <!-- Service for Broadcasting a Physical Web URL -->
         <service
             android:name="org.chromium.chrome.browser.physicalweb.PhysicalWebBroadcastService"