Add support for GL_EXT_raster_multisample

src/gpu/gl/GrGLPathRendering.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "gl/GrGLPathRendering.h"
 #include "gl/GrGLUtil.h"
 #include "gl/GrGLGpu.h"
@@ skipping 88 matching lines @@
 void GrGLPathRendering::onStencilPath(const StencilPathArgs& args, const GrPath* path) {
     GrGLGpu* gpu = this->gpu();
     SkASSERT(gpu->caps()->shaderCaps()->pathRenderingSupport());
     gpu->flushColorWrite(false);
     gpu->flushDrawFace(GrPipelineBuilder::kBoth_DrawFace);
 
     GrGLRenderTarget* rt = static_cast<GrGLRenderTarget*>(args.fRenderTarget);
     SkISize size = SkISize::Make(rt->width(), rt->height());
     this->setProjectionMatrix(*args.fViewMatrix, size, rt->origin());
     gpu->flushScissor(*args.fScissor, rt->getViewport(), rt->origin());
-    gpu->flushHWAAState(rt, args.fUseHWAA);
+    gpu->flushHWAAState(rt, args.fUseHWAA, true);
     gpu->flushRenderTarget(rt, nullptr);
 
     const GrGLPath* glPath = static_cast<const GrGLPath*>(path);
 
     this->flushPathStencilSettings(*args.fStencil);
     SkASSERT(!fHWPathStencilSettings.isTwoSided());
 
     GrGLenum fillMode = gr_stencil_op_to_gl_path_rendering_fill_mode(
         fHWPathStencilSettings.passOp(GrStencilSettings::kFront_Face));
     GrGLint writeMask = fHWPathStencilSettings.writeMask(GrStencilSettings::kFront_Face);
@@ skipping 185 matching lines @@
             funcMask != fHWPathStencilSettings.funcMask(kFront_Face)) {
             GL_CALL(PathStencilFunc(GrToGLStencilFunc(func), funcRef, funcMask));
         }
         fHWPathStencilSettings = stencilSettings;
     }
 }
 
 inline GrGLGpu* GrGLPathRendering::gpu() {
     return static_cast<GrGLGpu*>(fGpu);
 }