Move a bunch of gpu files out of include/private and into src/gpu.

In GrRecordingContext I moved the auditTrail onto the heap and only there
when compiling for tests. This allowed us to move a lot of files out of
include private.

Change-Id: Ib76ac211c0c6fd10bacaccf0c5f93f21a59f35d5
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/221344
Commit-Queue: Greg Daniel <egdaniel@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
Auto-Submit: Greg Daniel <egdaniel@google.com>
diff --git a/tests/ProxyRefTest.cpp b/tests/ProxyRefTest.cpp
index b24a123..2a5ecb4 100644
--- a/tests/ProxyRefTest.cpp
+++ b/tests/ProxyRefTest.cpp
@@ -10,13 +10,13 @@
 #include "tests/Test.h"
 
 #include "include/gpu/GrTexture.h"
-#include "include/private/GrRenderTargetProxy.h"
-#include "include/private/GrSurfaceProxy.h"
-#include "include/private/GrTextureProxy.h"
 #include "src/gpu/GrContextPriv.h"
 #include "src/gpu/GrPendingIOResource.h"
 #include "src/gpu/GrProxyProvider.h"
+#include "src/gpu/GrRenderTargetProxy.h"
 #include "src/gpu/GrResourceProvider.h"
+#include "src/gpu/GrSurfaceProxy.h"
+#include "src/gpu/GrTextureProxy.h"
 
 int32_t GrIORefProxy::getBackingRefCnt_TestOnly() const {
     if (fTarget) {