[Cronet] Fix up log TAGs to be accurate and prevent future inaccuracies.

components/cronet/android/java/src/org/chromium/net/impl/CronetUploadDataStream.java

 // 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.net.impl;
 
 import android.annotation.SuppressLint;
-import android.util.Log;
 
+import org.chromium.base.Log;
 import org.chromium.base.VisibleForTesting;
 import org.chromium.base.annotations.CalledByNative;
 import org.chromium.base.annotations.JNINamespace;
 import org.chromium.base.annotations.NativeClassQualifiedName;
 import org.chromium.net.UploadDataProvider;
 import org.chromium.net.UploadDataSink;
 
 import java.io.IOException;
 import java.nio.ByteBuffer;
 import java.util.concurrent.Executor;
 
 import javax.annotation.concurrent.GuardedBy;
 
 /**
  * CronetUploadDataStream handles communication between an upload body
  * encapsulated in the embedder's {@link UploadDataSink} and a C++
  * UploadDataStreamAdapter, which it owns. It's attached to a {@link
  * CronetUrlRequest}'s during the construction of request's native C++ objects
  * on the network thread, though it's created on one of the embedder's threads.
  * It is called by the UploadDataStreamAdapter on the network thread, but calls
  * into the UploadDataSink and the UploadDataStreamAdapter on the Executor
  * passed into its constructor.
  */
 @JNINamespace("cronet")
 @VisibleForTesting
 public final class CronetUploadDataStream extends UploadDataSink {
-    private static final String TAG = "CronetUploadDataStream";
+    private static final String TAG = CronetUploadDataStream.class.getSimpleName();
     // These are never changed, once a request starts.
     private final Executor mExecutor;
     private final VersionSafeCallbacks.UploadDataProviderWrapper mDataProvider;
     private long mLength;
     private long mRemainingLength;
     private CronetUrlRequest mRequest;
 
     // Reusable read task, to reduce redundant memory allocation.
     private final Runnable mReadTask = new Runnable() {
         @Override
@@ skipping 339 matching lines @@
 
     @NativeClassQualifiedName("CronetUploadDataStreamAdapter")
     private native void nativeOnReadSucceeded(long nativePtr, int bytesRead, boolean finalChunk);
 
     @NativeClassQualifiedName("CronetUploadDataStreamAdapter")
     private native void nativeOnRewindSucceeded(long nativePtr);
 
     @NativeClassQualifiedName("CronetUploadDataStreamAdapter")
     private static native void nativeDestroy(long nativePtr);
 }