Bug 24796: Comment out excess permissions from GeckoView

The GeckoView AndroidManifest.xml is not preprocessed unlike Fennec's
manifest, so we can't use the ifdef preprocessor guards around the
permissions we do not want. Commenting the permissions is the
next-best-thing.

mobile/android/geckoview/src/main/AndroidManifest.xml

@@ -5,21 +5,33 @@
 
 <manifest xmlns:android="http://schemas.android.com/apk/res/android">
 
+<!--#ifdef MOZ_ANDROID_NETWORK_STATE-->
+    <!--
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
+    -->
+<!--#endif-->
     <uses-permission android:name="android.permission.HIGH_SAMPLING_RATE_SENSORS"/>
     <uses-permission android:name="android.permission.INTERNET"/>
     <uses-permission android:name="android.permission.WAKE_LOCK"/>
     <uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS" />
 
+<!--#ifdef MOZ_ANDROID_LOCATION-->
+    <!--
     <uses-feature
             android:name="android.hardware.location"
             android:required="false"/>
     <uses-feature
             android:name="android.hardware.location.gps"
             android:required="false"/>
+    -->
+<!--#endif-->
     <uses-feature
             android:name="android.hardware.touchscreen"
             android:required="false"/>
+<!--#ifdef MOZ_WEBRTC-->
+    <!-- TODO preprocess AndroidManifest.xml so that we can
+         conditionally include WebRTC permissions based on MOZ_WEBRTC. -->
+    <!--
     <uses-feature
             android:name="android.hardware.camera"
             android:required="false"/>
@@ -36,6 +48,8 @@
     <uses-feature
             android:name="android.hardware.camera.any"
             android:required="false"/>
+    -->
+<!--#endif-->
 
     <!-- GeckoView requires OpenGL ES 2.0 -->
     <uses-feature

mobile/android/moz.configure

@@ -99,3 +99,15 @@ set_config(
     "MOZ_ANDROID_FAT_AAR_ARCHITECTURES",
     depends("MOZ_ANDROID_FAT_AAR_ARCHITECTURES")(lambda x: x),
 )
+
+project_flag(
+    "MOZ_ANDROID_NETWORK_STATE",
+    help="Include permission for accessing WiFi/network state on Android",
+    default=False,
+)
+
+project_flag(
+    "MOZ_ANDROID_LOCATION",
+    help="Include permission for accessing fine and course-grain Location on Android",
+    default=False,
+)