Make GrDrawTarget::Caps ref counted and GrGLCaps derive from it.

src/gpu/gl/GrGLContext.cpp

Index: src/gpu/gl/GrGLContext.cpp
===================================================================
--- src/gpu/gl/GrGLContext.cpp	(revision 8359)
+++ src/gpu/gl/GrGLContext.cpp	(working copy)
@@ -14,7 +14,7 @@
     fGLSLGeneration = ctxInfo.fGLSLGeneration;
     fVendor = ctxInfo.fVendor;
     fExtensions = ctxInfo.fExtensions;

[robertphillips, 2013/03/25 15:34:09]

Shouldn't there be a ref here?

[bsalomon, 2013/03/25 15:37:27]

It's object assignment not pointer assignment. Since the object in
GrGLContextInfo is writable (and there is a writable pointer getter) it seemed
safer to make a copy. The GrGLContextInfo cons always calls new to create a new
GrGLCaps.

[robertphillips, 2013/03/25 22:41:28]

Okay - missed that when reading through. Does that mean that the caps object's
ref-counted-ness is never really used?

-    fGLCaps = ctxInfo.fGLCaps;
+    *fGLCaps = *ctxInfo.fGLCaps.get();
     return *this;
 }
 
@@ -36,7 +36,7 @@
             fGLSLGeneration = GrGetGLSLGeneration(fBindingInUse, interface);
 
             fVendor = GrGLGetVendor(interface);
-            fGLCaps.init(*this, interface);
+            fGLCaps->init(*this, interface);
             return true;
         }
     }
@@ -53,7 +53,7 @@
     fGLSLGeneration = static_cast<GrGLSLGeneration>(0);
     fVendor = kOther_GrGLVendor;
     fExtensions.reset();
-    fGLCaps.reset();
+    fGLCaps->reset();
 }
 
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