Begin tracking driver info in GrGLContextInfo

src/gpu/gl/GrGLContext.h

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #ifndef GrGLContext_DEFINED
 #define GrGLContext_DEFINED
@@ skipping 10 matching lines @@
  * Encapsulates information about an OpenGL context including the OpenGL
  * version, the GrGLStandard type of the context, and GLSL version.
  */
 class GrGLContextInfo : public SkNoncopyable {
 public:
     GrGLStandard standard() const { return fInterface->fStandard; }
     GrGLVersion version() const { return fGLVersion; }
     GrGLSLGeneration glslGeneration() const { return fGLSLGeneration; }
     GrGLVendor vendor() const { return fVendor; }
     GrGLRenderer renderer() const { return fRenderer; }
-    /** Is this a mesa-based driver. Does not mean it is the osmesa software rasterizer. */
-    bool isMesa() const { return fIsMesa; }
-    /** Are we running inside Chromium (using the command buffer)? We make some different tradeoffs
-        about what errors to check for because queries are synchronous. We should probably expose
-        this as an option for clients other than Chromium. */
-    bool isChromium() const { return fIsChromium; }
+    /** What driver is running our GL implementation? This is not necessarily related to the vendor.
+        (e.g. Intel GPU being driven by Mesa) */
+    GrGLDriver driver() const { return fDriver; }
+    GrGLDriverVersion driverVersion() const { return fDriverVersion; }
     const GrGLCaps* caps() const { return fGLCaps.get(); }
     GrGLCaps* caps() { return fGLCaps; }
     bool hasExtension(const char* ext) const {
         return fInterface->hasExtension(ext);
     }
 
     const GrGLExtensions& extensions() const { return fInterface->fExtensions; }
 
 protected:
     struct ConstructorArgs {
         const GrGLInterface*                fInterface;
         GrGLVersion                         fGLVersion;
         GrGLSLGeneration                    fGLSLGeneration;
         GrGLVendor                          fVendor;
         GrGLRenderer                        fRenderer;
-        bool                                fIsMesa;
-        bool                                fIsChromium;
+        GrGLDriver                          fDriver;
+        GrGLDriverVersion                   fDriverVersion;
         const  GrContextOptions*            fContextOptions;
     };
 
     GrGLContextInfo(const ConstructorArgs& args);
 
     SkAutoTUnref<const GrGLInterface>   fInterface;
     GrGLVersion                         fGLVersion;
     GrGLSLGeneration                    fGLSLGeneration;
     GrGLVendor                          fVendor;
     GrGLRenderer                        fRenderer;
-    bool                                fIsMesa;
-    bool                                fIsChromium;
+    GrGLDriver                          fDriver;
+    GrGLDriverVersion                   fDriverVersion;
     SkAutoTUnref<GrGLCaps>              fGLCaps;
 };
 
 /**
  * Extension of GrGLContextInfo that also provides access to GrGLInterface.
  */
 class GrGLContext : public GrGLContextInfo {
 public:
     /**
      * Creates a GrGLContext from a GrGLInterface and the currently
      * bound OpenGL context accessible by the GrGLInterface.
      */
     static GrGLContext* Create(const GrGLInterface* interface, const GrContextOptions& options);
 
     const GrGLInterface* interface() const { return fInterface; }
 
 private:
     GrGLContext(const ConstructorArgs& args) : INHERITED(args) {}
 
     typedef GrGLContextInfo INHERITED;
 };
 
 #endif