Include glGetMultisamplefv API

src/gpu/GrCaps.cpp

Index: src/gpu/GrCaps.cpp
diff --git a/src/gpu/GrCaps.cpp b/src/gpu/GrCaps.cpp
index 4fb05c14a195a2cae8591daae64d52af031e4042..c544d6ef772fa979ba2bb01e402c54ba7e217c82 100644
--- a/src/gpu/GrCaps.cpp
+++ b/src/gpu/GrCaps.cpp
@@ -92,6 +92,7 @@ GrCaps::GrCaps(const GrContextOptions& options) {
     fCompressedTexSubImageSupport = false;
     fOversizedStencilSupport = false;
     fTextureBarrierSupport = false;
+    fSampleLocationsSupport = false;
     fUsesMixedSamples = false;
     fSupportsInstancedDraws = false;
     fFullClearIsFree = false;
@@ -165,6 +166,7 @@ SkString GrCaps::dump() const {
     r.appendf("Compressed Update Support          : %s\n", gNY[fCompressedTexSubImageSupport]);
     r.appendf("Oversized Stencil Support          : %s\n", gNY[fOversizedStencilSupport]);
     r.appendf("Texture Barrier Support            : %s\n", gNY[fTextureBarrierSupport]);
+    r.appendf("Sample Locations Support           : %s\n", gNY[fSampleLocationsSupport]);
     r.appendf("Uses Mixed Samples                 : %s\n", gNY[fUsesMixedSamples]);
     r.appendf("Supports instanced draws           : %s\n", gNY[fSupportsInstancedDraws]);
     r.appendf("Full screen clear is free          : %s\n", gNY[fFullClearIsFree]);