Add a GPU paths to resource cache of the context

include/core/SkPath.h

Index: include/core/SkPath.h
diff --git a/include/core/SkPath.h b/include/core/SkPath.h
index a6674d9afb4e65cc024ee8a155d5f4f4b4869bfe..dca8ae206bdae3a1b45ee8915cce7d8c1ae6d105 100644
--- a/include/core/SkPath.h
+++ b/include/core/SkPath.h
@@ -926,6 +926,8 @@ public:
     void setSourcePath(const SkPath* path);
 #endif
 
+    uint32_t getHash() const;

[bsalomon, 2013/10/18 13:25:24]

We already have a getGenerationID() method that is Android-only. Can we just
move that out from behind the macro (and it may have a different impl for the
Android build)?

[Kimmo Kinnunen, 2013/10/21 13:40:48]

There's the problem that this would be confusing for the reader, since the
functions mean totally different things.

Also the problem that the android builds would use the quite wrong behavior. 

SkPath generation id asserts that "paths with same generation id value have same
amount of modifications". Problematic for example since all rects have same
amount of modifications.

SkPathRef generation id asserts that "paths with same generation id value are
same paths".

+
     SkDEBUGCODE(void validate() const;)
 
 private: