Fix chrome_java FindBugs errors found when switching to n sdk.

chrome/android/java/src/org/chromium/chrome/browser/share/ShareHelper.java

Index: chrome/android/java/src/org/chromium/chrome/browser/share/ShareHelper.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/share/ShareHelper.java b/chrome/android/java/src/org/chromium/chrome/browser/share/ShareHelper.java
index b34b6ec6c09736007cac405cced2b28138e7c7d6..518f112631d57df93e4174b1dad59e51535e82f6 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/share/ShareHelper.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/share/ShareHelper.java
@@ -40,6 +40,7 @@ import org.chromium.base.ApplicationState;
 import org.chromium.base.ApplicationStatus;
 import org.chromium.base.ContextUtils;
 import org.chromium.base.Log;
+import org.chromium.base.StreamUtil;
 import org.chromium.base.VisibleForTesting;
 import org.chromium.base.annotations.SuppressFBWarnings;
 import org.chromium.base.metrics.RecordHistogram;
@@ -397,18 +398,12 @@ public class ShareHelper {
                         File saveFile = File.createTempFile(fileName, JPEG_EXTENSION, path);
                         fOut = new FileOutputStream(saveFile);
                         screenshot.compress(Bitmap.CompressFormat.JPEG, 85, fOut);
-                        fOut.flush();

[Ted C, 2016/10/14 16:12:26]

i guess the flush here wasn't actually needed?  i would expect close to do that
internally, so it makes sense to me

[agrieve, 2016/10/14 17:47:14]

Right - close() flush()es.

-                        fOut.close();
                         return saveFile;
                     }
                 } catch (IOException ie) {
-                    if (fOut != null) {
-                        try {
-                            fOut.close();
-                        } catch (IOException e) {
-                            // Ignore exception.
-                        }
-                    }
+                    Log.w(TAG, "Ignoring IOException when saving screenshot.", ie);
+                } finally {
+                    StreamUtil.closeQuietly(fOut);
                 }
 
                 return null;