diff -r 000000000000 -r 6474c204b198 gfx/skia/trunk/src/gpu/gl/GrGLContext.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gfx/skia/trunk/src/gpu/gl/GrGLContext.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,75 @@
+/*
+ * Copyright 2013 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "GrGLContext.h"
+
+////////////////////////////////////////////////////////////////////////////////
+
+GrGLContextInfo& GrGLContextInfo::operator= (const GrGLContextInfo& that) {
+    fInterface.reset(SkSafeRef(that.fInterface.get()));
+    fGLVersion      = that.fGLVersion;
+    fGLSLGeneration = that.fGLSLGeneration;
+    fVendor         = that.fVendor;
+    fRenderer       = that.fRenderer;
+    fIsMesa         = that.fIsMesa;
+    fIsChromium     = that.fIsChromium;
+    *fGLCaps        = *that.fGLCaps.get();
+    return *this;
+}
+
+bool GrGLContextInfo::initialize(const GrGLInterface* interface) {
+    this->reset();
+    // We haven't validated the GrGLInterface yet, so check for GetString
+    // function pointer
+    if (interface->fFunctions.fGetString) {
+        const GrGLubyte* verUByte;
+        GR_GL_CALL_RET(interface, verUByte, GetString(GR_GL_VERSION));
+        const char* ver = reinterpret_cast<const char*>(verUByte);
+
+        const GrGLubyte* rendererUByte;
+        GR_GL_CALL_RET(interface, rendererUByte, GetString(GR_GL_RENDERER));
+        const char* renderer = reinterpret_cast<const char*>(rendererUByte);
+
+        if (interface->validate()) {
+
+            fGLVersion = GrGLGetVersionFromString(ver);
+
+            fGLSLGeneration = GrGetGLSLGeneration(interface);
+
+            fVendor = GrGLGetVendor(interface);
+
+            fRenderer = GrGLGetRendererFromString(renderer);
+
+            fIsMesa = GrGLIsMesaFromVersionString(ver);
+
+            fIsChromium = GrGLIsChromiumFromRendererString(renderer);
+
+            // This must occur before caps init.
+            fInterface.reset(SkRef(interface));
+
+            fGLCaps->init(*this, interface);
+
+            return true;
+        }
+    }
+    return false;
+}
+
+bool GrGLContextInfo::isInitialized() const {
+    return NULL != fInterface.get();
+}
+
+void GrGLContextInfo::reset() {
+    fInterface.reset(NULL);
+    fGLVersion = GR_GL_VER(0, 0);
+    fGLSLGeneration = static_cast<GrGLSLGeneration>(0);
+    fVendor = kOther_GrGLVendor;
+    fRenderer = kOther_GrGLRenderer;
+    fIsMesa = false;
+    fIsChromium = false;
+    fGLCaps->reset();
+}