[Paint Preview] Disable Thread Check

Paint Preview Player Test is failing due to how threading is different
in that test. This works in prod so let's just remove the checks for
now.

Bug: 1136888, 1136712
Change-Id: I5aa0623dbd7465b2069d9534b299a3e23668b9bc
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2463327Reviewed-by: Mehran Mahmoudi <mahmoudi@chromium.org>
Commit-Queue: Calder Kitagawa <ckitagawa@chromium.org>
Cr-Commit-Position: refs/heads/master@{#815644}

components/paint_preview/player/android/java/src/org/chromium/components/paintpreview/player/frame/CompressibleBitmap.java

@@ -8,7 +8,6 @@ import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
 
 import org.chromium.base.Callback;
-import org.chromium.base.ThreadUtils;
 import org.chromium.base.task.SequencedTaskRunner;
 
 import java.io.ByteArrayOutputStream;
@@ -27,7 +26,6 @@ class CompressibleBitmap {
     private byte[] mCompressedData;
     private SequencedTaskRunner mTaskRunner;
     private AtomicBoolean mInUse = new AtomicBoolean();
-    private ThreadUtils.ThreadChecker mThreadChecker;
 
     /**
      * Creates a new compressible bitmap which starts to compress immediately.
@@ -39,7 +37,6 @@ class CompressibleBitmap {
     CompressibleBitmap(Bitmap bitmap, SequencedTaskRunner taskRunner, boolean visible) {
         mBitmap = bitmap;
         mTaskRunner = taskRunner;
-        mTaskRunner.postTask(() -> { mThreadChecker = new ThreadUtils.ThreadChecker(); });
         compressInBackground(visible);
     }
 
@@ -95,7 +92,6 @@ class CompressibleBitmap {
     }
 
     private boolean inflate() {
-        mThreadChecker.assertOnValidThread();
         if (mBitmap != null) return true;
 
         if (mCompressedData == null) return false;
@@ -105,7 +101,6 @@ class CompressibleBitmap {
     }
 
     private void compress() {
-        mThreadChecker.assertOnValidThread();
         if (mBitmap == null) return;
 
         ByteArrayOutputStream byteArrayStream = new ByteArrayOutputStream();
@@ -125,7 +120,6 @@ class CompressibleBitmap {
     }
 
     private void discardBitmapInternal() {
-        mThreadChecker.assertOnValidThread();
         if (!lock()) {
             mTaskRunner.postDelayedTask(this::discardBitmapInternal, IN_USE_BACKOFF_MS);
             return;
@@ -139,7 +133,6 @@ class CompressibleBitmap {
     }
 
     private void destroyInternal() {
-        mThreadChecker.assertOnValidThread();
         if (!lock()) {
             mTaskRunner.postDelayedTask(this::destroyInternal, IN_USE_BACKOFF_MS);
             return;