Add onMemoryDump to GrContext

src/gpu/gl/GrGLVertexBuffer.cpp

Index: src/gpu/gl/GrGLVertexBuffer.cpp
diff --git a/src/gpu/gl/GrGLVertexBuffer.cpp b/src/gpu/gl/GrGLVertexBuffer.cpp
index cd9d52a2800db29b31b27ea53dfcda31fb51d8fb..1f8951654f92b50091d5deac5953a779f176b11b 100644
--- a/src/gpu/gl/GrGLVertexBuffer.cpp
+++ b/src/gpu/gl/GrGLVertexBuffer.cpp
@@ -7,6 +7,7 @@
 
 #include "GrGLVertexBuffer.h"
 #include "GrGLGpu.h"
+#include "SkTraceMemoryDump.h"
 
 GrGLVertexBuffer::GrGLVertexBuffer(GrGLGpu* gpu, const Desc& desc)
     : INHERITED(gpu, desc.fSizeInBytes, desc.fDynamic, 0 == desc.fID)
@@ -48,3 +49,11 @@ bool GrGLVertexBuffer::onUpdateData(const void* src, size_t srcSizeInBytes) {
         return false;
     }
 }
+
+void GrGLVertexBuffer::setMemoryBacking(SkTraceMemoryDump* traceMemoryDump,
+                                        const SkString& dumpName) const {
+    SkString buffer_id;
+    buffer_id.appendU32(this->bufferID());
+    traceMemoryDump->setMemoryBacking(dumpName.c_str(), "gl_buffer",
+                                      buffer_id.c_str());
+}