Do not use android specific API in mojo/java.

mojo/java/src/org/chromium/mojo/common/DataPipeUtils.java

Index: mojo/java/src/org/chromium/mojo/common/DataPipeUtils.java
diff --git a/mojo/java/org/chromium/mojo/common/DataPipeUtils.java b/mojo/java/src/org/chromium/mojo/common/DataPipeUtils.java
similarity index 59%
rename from mojo/java/org/chromium/mojo/common/DataPipeUtils.java
rename to mojo/java/src/org/chromium/mojo/common/DataPipeUtils.java
index b35ea0c97e833e1e7b1872056b257e7c47c9a879..fb8389b8317f29917da88c94898f4c180a1d8183 100644
--- a/mojo/java/org/chromium/mojo/common/DataPipeUtils.java
+++ b/mojo/java/src/org/chromium/mojo/common/DataPipeUtils.java
@@ -4,13 +4,11 @@
 
 package org.chromium.mojo.common;
 
-import android.os.Handler;
-import android.util.Log;
-
 import org.chromium.mojo.system.Core;
 import org.chromium.mojo.system.DataPipe;
 import org.chromium.mojo.system.MojoException;
 import org.chromium.mojo.system.MojoResult;
+import org.chromium.mojo.system.RunLoop;
 
 import java.io.File;
 import java.io.FileOutputStream;
@@ -19,21 +17,18 @@ import java.nio.ByteBuffer;
 import java.nio.channels.FileChannel;
 import java.util.concurrent.Executor;
 
-
 /**
  * Helper class for copyToFile.
  */
 class CopyToFileJob implements Runnable {
-    private static final String TAG = "CopyToFileJob";
-
     private final DataPipe.ConsumerHandle mSource;
     private final File mDest;
     private final Runnable mComplete;
-    private final Handler mCaller;
+    private final RunLoop mCaller;
     private final Core mCore;
 
-    public CopyToFileJob(Core core, DataPipe.ConsumerHandle handle,
-            File file, Runnable complete, Handler caller) {
+    public CopyToFileJob(Core core, DataPipe.ConsumerHandle handle, File file, Runnable complete,
+            RunLoop caller) {
         mCore = core;
         mSource = handle;
         mDest = file;
@@ -41,13 +36,11 @@ class CopyToFileJob implements Runnable {
         mCaller = caller;
     }
 
-    private void readLoop(FileChannel dest) {
+    private void readLoop(FileChannel dest) throws IOException {
         do {
             try {
-                ByteBuffer buffer = mSource.beginReadData(0,
-                        DataPipe.ReadFlags.NONE);
-                if (buffer.capacity() == 0)
-                    break;
+                ByteBuffer buffer = mSource.beginReadData(0, DataPipe.ReadFlags.NONE);
+                if (buffer.capacity() == 0) break;
                 dest.write(buffer);
                 mSource.endReadData(buffer.capacity());
             } catch (MojoException e) {
@@ -59,42 +52,30 @@ class CopyToFileJob implements Runnable {
                 } else {
                     throw e;
                 }
-            } catch (IOException e) {
-                Log.e(TAG, "mDest.write failed", e);
-                break;
             }
         } while (true);
     }
 
     @Override
     public void run() {
-        FileChannel dest = null;
-        try {
-            dest = new FileOutputStream(mDest, false).getChannel();
+        try (DataPipe.ConsumerHandle source = mSource;
+                FileOutputStream stream = new FileOutputStream(mDest, false);
+                FileChannel dest = stream.getChannel()) {
             readLoop(dest);
-        } catch (java.io.FileNotFoundException e) {
-            Log.e(TAG, "destination file does not exist ", e);
-        }
-        mSource.close();
-        try {
-            dest.close();
-        } catch (IOException e) {
-            Log.e(TAG, "failed to close file ", e);
+        } catch (java.io.IOException e) {
+            throw new MojoException(e);
         }
 
-        mCaller.post(mComplete);
+        mCaller.postDelayedTask(mComplete, 0L);
     }
 }
 
-
 /**
  * Java helpers for dealing with DataPipes.
  */
 public class DataPipeUtils {
-    public static void copyToFile(Core core, DataPipe.ConsumerHandle source,
-              File dest, Executor executor, Runnable complete) {
-        // The default constructor for Handler uses the Looper for this thread.
-        executor.execute(
-                new CopyToFileJob(core, source, dest, complete, new Handler()));
+    public static void copyToFile(Core core, DataPipe.ConsumerHandle source, File dest,
+            Executor executor, Runnable complete) {
+        executor.execute(new CopyToFileJob(core, source, dest, complete, core.getCurrentRunLoop()));
     }
 }