Make SkDeferredCanvas query SkGPipeWriter for space allocated for bitmaps.

SkGPipe now has a method to report how much memory is used for its shared heap.

BUG=http://code.google.com/p/skia/issues/detail?id=738
TEST=DeferredCanvasTest

Review URL: https://codereview.appspot.com/6445046

git-svn-id: http://skia.googlecode.com/svn/trunk@4791 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gm/gmmain.cpp b/gm/gmmain.cpp
index 9f109f5..ba8c590 100644
--- a/gm/gmmain.cpp
+++ b/gm/gmmain.cpp
@@ -629,7 +629,7 @@
     { "", 0 },
     { " cross-process", SkGPipeWriter::kCrossProcess_Flag },
     { " cross-process, shared address", SkGPipeWriter::kCrossProcess_Flag
-        | SkGPipeWriter::kSharedAddressSpace_SkGPipeFlag }
+        | SkGPipeWriter::kSharedAddressSpace_Flag }
 };
 
 static ErrorBitfield test_pipe_playback(GM* gm,