Add caps overrides to GMs

src/gpu/GrCaps.cpp

Index: src/gpu/GrCaps.cpp
diff --git a/src/gpu/GrCaps.cpp b/src/gpu/GrCaps.cpp
index eb2cf7dcbd45a270524e875b80f0c0f40aa04e0c..625bd90e8f5adc45b88c0d59cad0d3d1648f1c09 100644
--- a/src/gpu/GrCaps.cpp
+++ b/src/gpu/GrCaps.cpp
@@ -73,6 +73,10 @@ SkString GrShaderCaps::dump() const {
     return r;
 }
 
+void GrShaderCaps::applyOptionsOverrides(const GrContextOptions&) {
+    // Currently no overrides apply to shader caps.
+}
+
 ///////////////////////////////////////////////////////////////////////////////
 
 GrCaps::GrCaps(const GrContextOptions& options) {
@@ -103,6 +107,10 @@ GrCaps::GrCaps(const GrContextOptions& options) {
     fDrawPathMasksToCompressedTextureSupport = options.fDrawPathToCompressedTexture;
 }
 
+void GrCaps::applyOptionsOverrides(const GrContextOptions& options) {
+    fMaxTextureSize = SkTMin(fMaxTextureSize, options.fMaxTextureSizeOverride);
+}
+
 static SkString map_flags_to_string(uint32_t flags) {
     SkString str;
     if (GrCaps::kNone_MapFlags == flags) {