am 6195432b: Merge branch \'eclair-plus-aosp\' of ssh://android-git.corp.google.com:29418/platform/frameworks/base into eclair-mr2-plus-aosp

Merge commit '6195432b6fde3cda4bc7e2406c8f2975795933a7'

* commit '6195432b6fde3cda4bc7e2406c8f2975795933a7':
  Fix for 2177367: Reduce duration of vibrate in RotaryLockScreen
  Fix issue #2176944: Need API so browser, others can determine memory size of device
  Fix issue #2177262: Improve animations
  Fix issue #2174566: HOT STABILITY: NPE in activity manager

core/java/android/app/ActivityManager.java

@@ -27,6 +27,7 @@ import android.os.RemoteException;
 import android.os.Handler;
 import android.os.Parcel;
 import android.os.Parcelable;
+import android.os.SystemProperties;
 import android.text.TextUtils;
 import java.util.List;
 
@@ -46,6 +47,26 @@ public class ActivityManager {
         mHandler = handler;
     }
 
+    /**
+     * Return the approximate per-application memory class of the current
+     * device.  This gives you an idea of how hard a memory limit you should
+     * impose on your application to let the overall system work best.  The
+     * returned value is in megabytes; the baseline Android memory class is
+     * 16 (which happens to be the Java heap limit of those devices); some
+     * device with more memory may return 24 or even higher numbers.
+     */
+    public int getMemoryClass() {
+        return staticGetMemoryClass();
+    }
+    
+    /** @hide */
+    static public int staticGetMemoryClass() {
+        // Really brain dead right now -- just take this from the configured
+        // vm heap size, and assume it is in megabytes and thus ends with "m".
+        String vmHeapSize = SystemProperties.get("dalvik.vm.heapsize", "16m");
+        return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length()-1));
+    }
+    
     /**
      * Information you can retrieve about tasks that the user has most recently
      * started or visited.

core/java/com/android/internal/widget/RotarySelector.java

@@ -106,8 +106,8 @@ public class RotarySelector extends View {
 
     // Vibration (haptic feedback)
     private Vibrator mVibrator;
-    private static final long VIBRATE_SHORT = 30;  // msec
-    private static final long VIBRATE_LONG = 60;  // msec
+    private static final long VIBRATE_SHORT = 20;  // msec
+    private static final long VIBRATE_LONG = 20;  // msec
 
     /**
      * The drawable for the arrows need to be scrunched this many dips towards the rotary bg below