[Android] Use exceptions rather that Log.wtf on Android

AudioManagerAndroid uses Log.wtf to signal error conditions. However,
the undefined behavior of this function depending on device
configuration makes debugging difficult. Throw exceptions instead.

Review URL: https://codereview.chromium.org/340083002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@278807 0039d316-1c4b-4281-b951-d872f2087c98

media/base/android/java/src/org/chromium/media/AudioManagerAndroid.java

@@ -313,8 +313,7 @@ class AudioManagerAndroid {
 
         if (on) {
             if (mSavedAudioMode != AudioManager.MODE_INVALID) {
-                Log.wtf(TAG, "Audio mode has already been set");
-                return;
+                throw new IllegalStateException("Audio mode has already been set");
             }
 
             // Store the current audio mode the first time we try to
@@ -322,8 +321,9 @@ class AudioManagerAndroid {
             try {
                 mSavedAudioMode = mAudioManager.getMode();
             } catch (SecurityException e) {
-                Log.wtf(TAG, "getMode exception: ", e);
                 logDeviceInfo();
+                throw e;
+
             }
 
             // Store microphone mute state and speakerphone state so it can
@@ -334,8 +334,8 @@ class AudioManagerAndroid {
             try {
                 mAudioManager.setMode(AudioManager.MODE_IN_COMMUNICATION);
             } catch (SecurityException e) {
-                Log.wtf(TAG, "setMode exception: ", e);
                 logDeviceInfo();
+                throw e;
             }
 
             // Start observing volume changes to detect when the
@@ -347,8 +347,7 @@ class AudioManagerAndroid {
 
         } else {
             if (mSavedAudioMode == AudioManager.MODE_INVALID) {
-                Log.wtf(TAG, "Audio mode has not yet been set");
-                return;
+                throw new IllegalStateException("Audio mode has not yet been set");
             }
 
             stopObservingVolumeChanges();
@@ -362,8 +361,8 @@ class AudioManagerAndroid {
             try {
                 mAudioManager.setMode(mSavedAudioMode);
             } catch (SecurityException e) {
-                Log.wtf(TAG, "setMode exception: ", e);
                 logDeviceInfo();
+                throw e;
             }
             mSavedAudioMode = AudioManager.MODE_INVALID;
         }
@@ -541,12 +540,12 @@ class AudioManagerAndroid {
     }
 
     /**
-     * Helper method for debugging purposes. Logs message if method is not
+     * Helper method for debugging purposes. Ensures that method is
      * called on same thread as this object was created on.
      */
     private void checkIfCalledOnValidThread() {
         if (DEBUG && !mNonThreadSafe.calledOnValidThread()) {
-            Log.wtf(TAG, "Method is not called on valid thread");
+            throw new IllegalStateException("Method is not called on valid thread");
         }
     }
 
@@ -655,35 +654,19 @@ class AudioManagerAndroid {
         if (runningOnJellyBeanMR2OrHigher()) {
             // Use BluetoothManager to get the BluetoothAdapter for
             // Android 4.3 and above.
-            try {
-                BluetoothManager btManager =
-                        (BluetoothManager)mContext.getSystemService(
-                                Context.BLUETOOTH_SERVICE);
-                btAdapter = btManager.getAdapter();
-            } catch (Exception e) {
-                Log.wtf(TAG, "BluetoothManager.getAdapter exception", e);
-                return false;
-            }
+            BluetoothManager btManager =
+                    (BluetoothManager)mContext.getSystemService(
+                            Context.BLUETOOTH_SERVICE);
+            btAdapter = btManager.getAdapter();
         } else {
             // Use static method for Android 4.2 and below to get the
             // BluetoothAdapter.
-            try {
-                btAdapter = BluetoothAdapter.getDefaultAdapter();
-            } catch (Exception e) {
-                Log.wtf(TAG, "BluetoothAdapter.getDefaultAdapter exception", e);
-                return false;
-            }
+            btAdapter = BluetoothAdapter.getDefaultAdapter();
         }
 
         int profileConnectionState;
-        try {
-            profileConnectionState = btAdapter.getProfileConnectionState(
+        profileConnectionState = btAdapter.getProfileConnectionState(
                 android.bluetooth.BluetoothProfile.HEADSET);
-        } catch (Exception e) {
-            Log.wtf(TAG, "BluetoothAdapter.getProfileConnectionState exception", e);
-            profileConnectionState =
-                android.bluetooth.BluetoothProfile.STATE_DISCONNECTED;
-        }
 
         // Ensure that Bluetooth is enabled and that a device which supports the
         // headset and handsfree profile is connected.
@@ -1088,8 +1071,8 @@ class AudioManagerAndroid {
 
                     // Ensure that the observer is activated during communication mode.
                     if (mAudioManager.getMode() != AudioManager.MODE_IN_COMMUNICATION) {
-                        Log.wtf(TAG, "Only enable SettingsObserver in COMM mode");
-                        return;
+                        throw new IllegalStateException(
+                                "Only enable SettingsObserver in COMM mode");
                     }
 
                     // Get stream volume for the voice stream and deliver callback if
@@ -1120,7 +1103,7 @@ class AudioManagerAndroid {
         try {
             mSettingsObserverThread.join();
         } catch (InterruptedException e) {
-            Log.wtf(TAG, "Thread.join() exception: ", e);
+            Log.e(TAG, "Thread.join() exception: ", e);
         }
         mSettingsObserverThread = null;
     }