Set parcel data position to 0 when cloning the relro bundle.

Rename local variable from 'p' to 'parcel.  Call parcel.setDataPosition(0)
between write and read.  Fix a log message for punctuation.

Fixes (from logcat):
  E/Bundle  ( 5115): readBundle: bad magic number
  E/Bundle  ( 5115): readBundle: trace = java.lang.RuntimeException
  E/Bundle  ( 5115):      at android.os.Bundle.readFromParcelInner(Bundle.java:1677)
  E/Bundle  ( 5115):      at android.os.Bundle.readFromParcel(Bundle.java:1670)
  E/Bundle  ( 5115):      at org.chromium.base.library_loader.Linker.useSharedRelros(Linker.java:494)
  E/Bundle  ( 5115):      at org.chromium.content.app.ChildProcessService$1.setupConnection(ChildProcessService.java:100)
  E/Bundle  ( 5115):      at org.chromium.content.common.IChildProcessService$Stub.onTransact(IChildProcessService.java:57)
  E/Bundle  ( 5115):      at android.os.Binder.execTransact(Binder.java:388)
  E/Bundle  ( 5115):      at dalvik.system.NativeStart.run(Native Method)

BUG=388356

Review URL: https://codereview.chromium.org/371943003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@282298 0039d316-1c4b-4281-b951-d872f2087c98

base/android/java/src/org/chromium/base/library_loader/Linker.java

@@ -489,14 +489,15 @@ public class Linker {
         if (bundle != null) {
             bundle.setClassLoader(LibInfo.class.getClassLoader());
             clonedBundle = new Bundle(LibInfo.class.getClassLoader());
-            Parcel p = Parcel.obtain();
-            bundle.writeToParcel(p, 0);
-            clonedBundle.readFromParcel(p);
-            p.recycle();
+            Parcel parcel = Parcel.obtain();
+            bundle.writeToParcel(parcel, 0);
+            parcel.setDataPosition(0);
+            clonedBundle.readFromParcel(parcel);
+            parcel.recycle();
         }
         if (DEBUG) {
             Log.i(TAG, "useSharedRelros() called with " + bundle +
-                    ",cloned " + clonedBundle);
+                    ", cloned " + clonedBundle);
         }
         synchronized (Linker.class) {
             // Note that in certain cases, this can be called before