2 files changed, 9 insertions, 0 deletions
diff --git a/src/sksl/SkSLGLSLCodeGenerator.cpp b/src/sksl/SkSLGLSLCodeGenerator.cpp
index bcf45ba7be..84c16d40f8 100644
--- a/src/sksl/SkSLGLSLCodeGenerator.cpp
+++ b/src/sksl/SkSLGLSLCodeGenerator.cpp
@@ -1089,6 +1089,11 @@ void GLSLCodeGenerator::writeVarDeclarations(const VarDeclarations& decl, bool g
                 fHeader.writeText(fProgram.fSettings.fCaps->externalTextureExtensionString());
                 fHeader.writeText(" : require\n");
             }
+            if (fProgram.fSettings.fCaps->secondExternalTextureExtensionString()) {
+                fHeader.writeText("#extension ");
+                fHeader.writeText(fProgram.fSettings.fCaps->secondExternalTextureExtensionString());
+                fHeader.writeText(" : require\n");
+            }
             fFoundExternalSamplerDecl = true;
         }
     }
diff --git a/src/sksl/SkSLUtil.h b/src/sksl/SkSLUtil.h
index dc87246605..40a5a4774f 100644
--- a/src/sksl/SkSLUtil.h
+++ b/src/sksl/SkSLUtil.h
@@ -155,6 +155,10 @@ public:
         return nullptr;
     }
 
+    const char* secondExternalTextureExtensionString() const {
+        return nullptr;
+    }
+
     const char* versionDeclString() const {
         return "";
     }