Chromecast: don't try to upload crash immediately.

chromecast/base/java/src/org/chromium/chromecast/base/CastSettingsManager.java

Index: chromecast/base/java/src/org/chromium/chromecast/base/CastSettingsManager.java
diff --git a/chromecast/base/java/src/org/chromium/chromecast/base/CastSettingsManager.java b/chromecast/base/java/src/org/chromium/chromecast/base/CastSettingsManager.java
new file mode 100644
index 0000000000000000000000000000000000000000..2c6b61a9e88a96eab344f23377575e73c6ed7746
--- /dev/null
+++ b/chromecast/base/java/src/org/chromium/chromecast/base/CastSettingsManager.java
@@ -0,0 +1,152 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package org.chromium.chromecast.base;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.database.ContentObserver;
+import android.os.Build;
+import android.os.Handler;
+import android.provider.Settings;
+
+import org.chromium.base.Log;
+
+/**
+ * Manager for Cast settings.
+ */
+public final class CastSettingsManager {
+    private static final String TAG = "cr.CastSettingsManager";
+
+    private static final String PREFS_FILE_NAME = "CastSettings";
+
+    /** Key for the "send usage stats" boolean setting. */
+    private static final String SEND_USAGE_STATS_SETTING = "developer_support";
+
+    /** The default value for the "send usage stats" setting. */
+    private static final boolean SEND_USAGE_STATS_SETTING_DEFAULT = true;
+
+    /** The default device name, which is the model name. */
+    private static final String DEFAULT_DEVICE_NAME = Build.MODEL;
+
+    // TODO(gunsch): Switch to Settings.Global.DEVICE_NAME once it's in public SDK.
+    // private static final String DEVICE_NAME_SETTING_KEY = Settings.Global.DEVICE_NAME;
+    private static final String DEVICE_NAME_SETTING_KEY = "device_name";
+    private static final String DEVICE_PROVISIONED_SETTING_KEY = Settings.Global.DEVICE_PROVISIONED;
+
+    private final Context mContext;
+    private final SharedPreferences mSettings;
+    private SharedPreferences.OnSharedPreferenceChangeListener mSharedPreferenceListener;
+    private ContentObserver mDeviceNameObserver;
+    private ContentObserver mIsDeviceProvisionedObserver;
+
+    /**
+     * Can be implemented to receive notifications from a CastSettingsManager instance when
+     * settings have changed.
+     */
+    public static class OnSettingChangedListener {
+        public void onCastEnabledChanged(boolean enabled) {}
+        public void onSendUsageStatsChanged(boolean enabled) {}
+        public void onDeviceNameChanged(String deviceName) {}
+    }
+
+    private OnSettingChangedListener mListener;
+
+    /**
+     * Creates a simple CastSettingsManager instance for a sandboxed process that can only get/set
+     * settings but does not register any listeners, including system listeners.
+     */
+    public static CastSettingsManager createSandboxedCastSettingsManager(Context context) {
+        return new CastSettingsManager(context);
+    }
+
+    /**
+     * Creates a fully-featured CastSettingsManager instance for any unrestricted processes.
+     */
+    public static CastSettingsManager createPrivilegedCastSettingsManager(Context context,
+            OnSettingChangedListener listener) {
+        return new CastSettingsManager(context, listener);
+    }
+
+    private CastSettingsManager(Context context) {
+        mContext = context;
+        mSettings = context.getSharedPreferences(PREFS_FILE_NAME, 0);
+    }
+
+    private CastSettingsManager(final Context context, OnSettingChangedListener listener) {
+        this(context);
+        mListener = listener;
+
+        mSharedPreferenceListener = new SharedPreferences.OnSharedPreferenceChangeListener() {
+            @Override
+            public void onSharedPreferenceChanged(SharedPreferences prefs, String key) {
+                if (mListener == null) {
+                    return;
+                }
+
+                if (key.equals(SEND_USAGE_STATS_SETTING)) {
+                    mListener.onSendUsageStatsChanged(prefs.getBoolean(key,
+                                    SEND_USAGE_STATS_SETTING_DEFAULT));
+                }
+            }
+        };
+        mSettings.registerOnSharedPreferenceChangeListener(mSharedPreferenceListener);
+
+        mDeviceNameObserver = new ContentObserver(new Handler()) {
+            @Override
+            public void onChange(boolean selfChange) {
+                mListener.onDeviceNameChanged(getDeviceName());
+            }
+        };
+        mContext.getContentResolver().registerContentObserver(
+                Settings.Global.getUriFor(DEVICE_NAME_SETTING_KEY), true,
+                mDeviceNameObserver);
+
+        if (!isCastEnabled()) {
+            mIsDeviceProvisionedObserver = new ContentObserver(new Handler()) {
+                @Override
+                public void onChange(boolean selfChange) {
+                    Log.d(TAG, "Device provisioned");
+                    mListener.onCastEnabledChanged(isCastEnabled());
+                }
+            };
+            mContext.getContentResolver().registerContentObserver(
+                    Settings.Global.getUriFor(DEVICE_PROVISIONED_SETTING_KEY), true,
+                    mIsDeviceProvisionedObserver);
+        }
+    }
+
+    public void dispose() {
+        mSettings.unregisterOnSharedPreferenceChangeListener(mSharedPreferenceListener);
+        mSharedPreferenceListener = null;
+        mContext.getContentResolver().unregisterContentObserver(mDeviceNameObserver);
+        mDeviceNameObserver = null;
+
+        if (mIsDeviceProvisionedObserver != null) {
+            mContext.getContentResolver().unregisterContentObserver(mIsDeviceProvisionedObserver);
+            mIsDeviceProvisionedObserver = null;
+        }
+    }
+
+    public boolean isCastEnabled() {
+        // However, Cast is disabled until the device is provisioned (see b/18950240).
+        return Settings.Global.getInt(
+                mContext.getContentResolver(), DEVICE_PROVISIONED_SETTING_KEY, 0) == 1;
+    }
+
+    public boolean isSendUsageStatsEnabled() {
+        return mSettings.getBoolean(SEND_USAGE_STATS_SETTING, SEND_USAGE_STATS_SETTING_DEFAULT);
+    }
+
+    public void setSendUsageStatsEnabled(boolean enabled) {
+        mSettings.edit().putBoolean(SEND_USAGE_STATS_SETTING, enabled).apply();
+    }
+
+    public String getDeviceName() {
+        String deviceName = Settings.Global.getString(mContext.getContentResolver(),
+                DEVICE_NAME_SETTING_KEY);
+        return (deviceName != null) ? deviceName : DEFAULT_DEVICE_NAME;
+    }
+
+}