Update from https://crrev.com/308331

gpu/command_buffer/client/gles2_implementation.cc

Index: gpu/command_buffer/client/gles2_implementation.cc
diff --git a/gpu/command_buffer/client/gles2_implementation.cc b/gpu/command_buffer/client/gles2_implementation.cc
index 19a005f43015f6ecf1b55f43ed478262133acacc..88b9c72fa013bdfd4efc23739211c68eb90d8aa0 100644
--- a/gpu/command_buffer/client/gles2_implementation.cc
+++ b/gpu/command_buffer/client/gles2_implementation.cc
@@ -2314,6 +2314,14 @@ void GLES2Implementation::GenValuebuffersCHROMIUMHelper(
     const GLuint* /* valuebuffers */) {
 }
 
+void GLES2Implementation::GenSamplersHelper(
+    GLsizei /* n */, const GLuint* /* samplers */) {
+}
+
+void GLES2Implementation::GenTransformFeedbacksHelper(
+    GLsizei /* n */, const GLuint* /* transformfeedbacks */) {
+}
+
 // NOTE #1: On old versions of OpenGL, calling glBindXXX with an unused id
 // generates a new resource. On newer versions of OpenGL they don't. The code
 // related to binding below will need to change if we switch to the new OpenGL
@@ -2684,6 +2692,39 @@ void GLES2Implementation::DeleteValuebuffersCHROMIUMHelper(
   }
 }
 
+void GLES2Implementation::DeleteSamplersStub(
+    GLsizei n, const GLuint* samplers) {
+  helper_->DeleteSamplersImmediate(n, samplers);
+}
+
+void GLES2Implementation::DeleteSamplersHelper(
+    GLsizei n, const GLuint* samplers) {
+  if (!GetIdHandler(id_namespaces::kSamplers)->FreeIds(
+      this, n, samplers, &GLES2Implementation::DeleteSamplersStub)) {
+    SetGLError(
+        GL_INVALID_VALUE,
+        "glDeleteSamplers", "id not created by this context.");
+    return;
+  }
+}
+
+void GLES2Implementation::DeleteTransformFeedbacksStub(
+    GLsizei n, const GLuint* transformfeedbacks) {
+  helper_->DeleteTransformFeedbacksImmediate(n, transformfeedbacks);
+}
+
+void GLES2Implementation::DeleteTransformFeedbacksHelper(
+    GLsizei n, const GLuint* transformfeedbacks) {
+  if (!GetIdHandler(id_namespaces::kTransformFeedbacks)->FreeIds(
+      this, n, transformfeedbacks,
+      &GLES2Implementation::DeleteTransformFeedbacksStub)) {
+    SetGLError(
+        GL_INVALID_VALUE,
+        "glDeleteTransformFeedbacks", "id not created by this context.");
+    return;
+  }
+}
+
 void GLES2Implementation::DeleteValuebuffersCHROMIUMStub(
     GLsizei n,
     const GLuint* valuebuffers) {
@@ -3985,6 +4026,18 @@ bool GLES2Implementation::ValidateOffset(const char* func, GLintptr offset) {
   return true;
 }
 
+bool GLES2Implementation::GetSamplerParameterfvHelper(
+    GLuint /* sampler */, GLenum /* pname */, GLfloat* /* params */) {
+  // TODO(zmo): Implement client side caching.
+  return false;
+}
+
+bool GLES2Implementation::GetSamplerParameterivHelper(
+    GLuint /* sampler */, GLenum /* pname */, GLint* /* params */) {
+  // TODO(zmo): Implement client side caching.
+  return false;
+}
+
 // Include the auto-generated part of this file. We split this because it means
 // we can easily edit the non-auto generated parts right here in this file
 // instead of having to edit some template or the code generator.