command_buffer: Implement path rendering functions for CHROMIUM_path_rendering

gpu/command_buffer/common/gles2_cmd_utils.cc

Index: gpu/command_buffer/common/gles2_cmd_utils.cc
diff --git a/gpu/command_buffer/common/gles2_cmd_utils.cc b/gpu/command_buffer/common/gles2_cmd_utils.cc
index 8381586482b441b32cd7fe3f1bb8cd9284840419..85571dca18a8d81f347693a594c1a3e3fb1d932a 100644
--- a/gpu/command_buffer/common/gles2_cmd_utils.cc
+++ b/gpu/command_buffer/common/gles2_cmd_utils.cc
@@ -546,6 +546,26 @@ size_t GLES2Util::GetGLTypeSizeForTexturesAndBuffers(uint32 type) {
   }
 }
 
+size_t GLES2Util::GetComponentCountForGLTransformType(uint32 type) {
+  switch (type) {
+    case GL_TRANSLATE_X_CHROMIUM:
+    case GL_TRANSLATE_Y_CHROMIUM:
+      return 1;
+    case GL_TRANSLATE_2D_CHROMIUM:
+      return 2;
+    case GL_TRANSLATE_3D_CHROMIUM:
+      return 3;
+    case GL_AFFINE_2D_CHROMIUM:
+    case GL_TRANSPOSE_AFFINE_2D_CHROMIUM:
+      return 6;
+    case GL_AFFINE_3D_CHROMIUM:
+    case GL_TRANSPOSE_AFFINE_3D_CHROMIUM:
+      return 12;
+    default:
+      return 0;
+  }
+}
+
 uint32 GLES2Util::GLErrorToErrorBit(uint32 error) {
   switch (error) {
     case GL_INVALID_ENUM: