Bug Fix for Intel atan on gpu sweep gradient

src/gpu/gl/GrGLUtil.cpp

Index: src/gpu/gl/GrGLUtil.cpp
diff --git a/src/gpu/gl/GrGLUtil.cpp b/src/gpu/gl/GrGLUtil.cpp
index 87e2f83a289cf34f6c74cc79ef91a9ade3b6b1c5..b45f6fb490da746164272f7e77d5c75d88b2eeca 100644
--- a/src/gpu/gl/GrGLUtil.cpp
+++ b/src/gpu/gl/GrGLUtil.cpp
@@ -9,6 +9,7 @@
 #include "GrGLUtil.h"
 #include "SkMatrix.h"
 #include <stdio.h>
+#include <string>
 
 void GrGLClearErr(const GrGLInterface* gl) {
     while (GR_GL_NO_ERROR != gl->fFunctions.fGetError()) {}
@@ -213,7 +214,8 @@ GrGLVendor GrGLGetVendorFromString(const char* vendorString) {
         if (0 == strcmp(vendorString, "Imagination Technologies")) {
             return kImagination_GrGLVendor;
         }
-        if (0 == strcmp(vendorString, "Intel")) {
+        std::string vendorStringTmp(vendorString);
+        if (0 == vendorStringTmp.compare(0, 6, "Intel ") || 0 == strcmp(vendorString, "Intel")) {

[bsalomon, 2014/02/12 22:14:38]

strncmp? Not totally opposed to std::string but since we're already using the
C-style str functions here it seems more consistent.

             return kIntel_GrGLVendor;
         }
         if (0 == strcmp(vendorString, "Qualcomm")) {