Implement support for CHROMIUM_path_rendering pseudo extension

src/gpu/gl/builders/GrGLPathProgramBuilder.cpp

Index: src/gpu/gl/builders/GrGLPathProgramBuilder.cpp
diff --git a/src/gpu/gl/builders/GrGLPathProgramBuilder.cpp b/src/gpu/gl/builders/GrGLPathProgramBuilder.cpp
index c9f88cd702b3d0636585731f460c4561ab5dcd69..9bebe0d89e212b701ff9121861ee768f00fd2c0e 100644
--- a/src/gpu/gl/builders/GrGLPathProgramBuilder.cpp
+++ b/src/gpu/gl/builders/GrGLPathProgramBuilder.cpp
@@ -35,9 +35,25 @@ GrGLProgramBuilder::SeparableVaryingHandle GrGLPathProgramBuilder::addSeparableV
     return SeparableVaryingHandle::CreateFromSeparableVaryingIndex(varyingInfo.fLocation);
 }
 
+void GrGLPathProgramBuilder::bindProgramResourceLocations(GrGLuint programID) {
+    this->INHERITED::bindProgramResourceLocations(programID);
+    if (!fGpu->glPathRendering()->shouldBindFragmentInputs()) {
+        return;
+    }
+    int count = fSeparableVaryingInfos.count();
+    for (int i = 0; i < count; ++i) {
+        GL_CALL(BindFragmentInputLocation(programID,
+                                          i,
+                                          fSeparableVaryingInfos[i].fVariable.c_str()));
+        fSeparableVaryingInfos[i].fLocation = i;
+    }
+}
+
 void GrGLPathProgramBuilder::resolveProgramResourceLocations(GrGLuint programID) {
     this->INHERITED::resolveProgramResourceLocations(programID);
-
+    if (fGpu->glPathRendering()->shouldBindFragmentInputs()) {
+        return;
+    }
     int count = fSeparableVaryingInfos.count();
     for (int i = 0; i < count; ++i) {
         GrGLint location;