explicitly initialize all entries in array of SkBaseMatrix, since we can't say

trunk/include/core/SkThread_platform.h

Index: trunk/include/core/SkThread_platform.h
===================================================================
--- trunk/include/core/SkThread_platform.h	(revision 8632)
+++ trunk/include/core/SkThread_platform.h	(working copy)
@@ -154,8 +154,6 @@
 // Special case used when the static mutex must be available globally.
 #define SK_DECLARE_GLOBAL_MUTEX(name)   SkBaseMutex  name = { PTHREAD_MUTEX_INITIALIZER }
 
-#define SK_DECLARE_MUTEX_ARRAY(name, count)    SkBaseMutex name[count] = { { PTHREAD_MUTEX_INITIALIZER } }
-
 // A normal mutex that requires to be initialized through normal C++ construction,
 // i.e. when it's a member of another class, or allocated on the heap.
 class SK_API SkMutex : public SkBaseMutex, SkNoncopyable {
@@ -189,7 +187,6 @@
 
 #define SK_DECLARE_STATIC_MUTEX(name)           static SkBaseMutex  name
 #define SK_DECLARE_GLOBAL_MUTEX(name)           SkBaseMutex  name
-#define SK_DECLARE_MUTEX_ARRAY(name, count)     SkBaseMutex name[count]
 
 #endif // !SK_USE_POSIX_THREADS