Add class init stats to alloc counters (API change).

Add calls to retrieve class initialization stats via the allocation
count mechanism.

Also: deprecate a method that is never used, and a redundantly declared
default filename that begins with "/sdcard".

For bug 2461549.
diff --git a/vm/Profile.h b/vm/Profile.h
index 7cac150..a294f83 100644
--- a/vm/Profile.h
+++ b/vm/Profile.h
@@ -80,6 +80,9 @@
 
     int     gcCount;            // #of times an allocation triggered a GC
 
+    int     classInitCount;     // #of initialized classes
+    u8      classInitTime;      // cumulative time spent in class init (nsec)
+
 #if PROFILE_EXTERNAL_ALLOCATIONS
     int     externalAllocCount; // #of calls to dvmTrackExternalAllocation()
     int     externalAllocSize;  // #of bytes passed to ...ExternalAllocation()