Make all monkeys do the same thing

Monkeys were using SecureRandom, but what it really wanted was an LCRNG
that allowed it to reproduce the same output with seeds. This change
allows the monkeys to shine.

Bug: 6950454
Change-Id: Iabf0fc5e7d50b786fa32b946e85de797220ff569

cmds/monkey/src/com/android/commands/monkey/Monkey.java

@@ -516,6 +516,10 @@ public class Monkey {
             mMainCategories.add(Intent.CATEGORY_MONKEY);
         }
 
+        if (mSeed == 0) {
+            mSeed = System.currentTimeMillis() + System.identityHashCode(this);
+        }
+
         if (mVerbose > 0) {
             System.out.println(":Monkey: seed=" + mSeed + " count=" + mCount);
             if (mValidPackages.size() > 0) {
@@ -550,8 +554,7 @@ public class Monkey {
             return -4;
         }
 
-        mRandom = new SecureRandom();
-        mRandom.setSeed((mSeed == 0) ? -1 : mSeed);
+        mRandom = new Random(mSeed);
 
         if (mScriptFileNames != null && mScriptFileNames.size() == 1) {
             // script mode, ignore other options