Allow hiding volume boost feature with overlay.

Some devices do not support it, or do not support it well. Allow us to
hide it with an overlayable config flag.

Change-Id: I2c3b0b5d3a6e738b311b365f5855c41f7d08ab9a
(cherry picked from commit 4dfef8cbe64c0b6cfc45a1d40e17cfba4685f2e5)

2 files changed, 27 insertions, 2 deletions

diff --git a/res/values/config.xml b/res/values/config.xml
new file mode 100644
index 00000000..ff74c012
--- /dev/null
+++ b/res/values/config.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+     Copyright (C) 2015 The CyanogenMod Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<resources>
+    <bool name="config_disable_audio_boost">true</bool>
+</resources>
diff --git a/src/com/android/incallui/CallCardFragment.java b/src/com/android/incallui/CallCardFragment.java
index 8927e025..d1f0f7da 100644
--- a/src/com/android/incallui/CallCardFragment.java
+++ b/src/com/android/incallui/CallCardFragment.java
@@ -1180,8 +1180,14 @@ public class CallCardFragment extends BaseFragment<CallCardPresenter, CallCardPr
         }
     }
 
+    private boolean isVBHiddenByOverride() {
+        return getResources().getBoolean(R.bool.config_disable_audio_boost);
+    }
+
     private void updateVBButton() {
-        if (isVBAvailable()
+        if (isVBHiddenByOverride()) {
+            mVBButton.setVisibility(View.INVISIBLE);
+        } else if (isVBAvailable()
                 && mAudioManager.getParameters(VOLUME_BOOST).contains("=on")) {
 
                 mVBButton.setBackgroundResource(R.drawable.vb_active);
@@ -1259,7 +1265,7 @@ public class CallCardFragment extends BaseFragment<CallCardPresenter, CallCardPr
     private void updateVBbyCall(int state) {
         updateVBButton();
 
-        if (Call.State.ACTIVE == state) {
+        if (Call.State.ACTIVE == state && !isVBHiddenByOverride()) {
             mVBButton.setVisibility(View.VISIBLE);
         } else if (Call.State.DISCONNECTED == state) {
             if (!CallList.getInstance().hasAnyLiveCall()