Update from https://crrev.com/316786

gpu/command_buffer/common/gles2_cmd_format.h

Index: gpu/command_buffer/common/gles2_cmd_format.h
diff --git a/gpu/command_buffer/common/gles2_cmd_format.h b/gpu/command_buffer/common/gles2_cmd_format.h
index e4d38f014a8b1537c6da1e9bf1c92d12173ba5d6..944edfd5d0c639a497b95107e9a8ff4f197da49a 100644
--- a/gpu/command_buffer/common/gles2_cmd_format.h
+++ b/gpu/command_buffer/common/gles2_cmd_format.h
@@ -155,7 +155,7 @@ struct UniformBlockInfo {
   uint32_t binding;  // UNIFORM_BLOCK_BINDING
   uint32_t data_size;  // UNIFORM_BLOCK_DATA_SIZE
   uint32_t name_offset;  // offset from UniformBlocksHeader to start of name.
-  uint32_t name_length;  // UNIFORM_BLOCK_BLOCK_NAME_LENGTH
+  uint32_t name_length;  // UNIFORM_BLOCK_NAME_LENGTH
   uint32_t active_uniforms;  // UNIFORM_BLOCK_ACTIVE_UNIFORMS
   // offset from UniformBlocksHeader to |active_uniforms| indices.
   uint32_t active_uniform_offset;
@@ -171,6 +171,37 @@ struct UniformBlocksHeader {
   // UniformBlockInfo uniform_blocks[num_uniform_blocks];
 };
 
+// The data for one TransformFeedbackVarying from
+// GetTransformFeedbackVaringCHROMIUM.
+struct TransformFeedbackVaryingInfo {
+  uint32_t size;
+  uint32_t type;
+  uint32_t name_offset;  // offset from Header to start of name.
+  uint32_t name_length;  // including the null terminator.
+};
+
+// The format of the bucket filled out by GetTransformFeedbackVaryingsCHROMIUM
+struct TransformFeedbackVaryingsHeader {
+  uint32_t num_transform_feedback_varyings;
+  // TransformFeedbackVaryingInfo varyings[num_transform_feedback_varyings];
+};
+
+// Parameters of a uniform that can be queried through glGetActiveUniformsiv,
+// but not through glGetActiveUniform.
+struct UniformES3Info {
+  int32_t block_index;
+  int32_t offset;
+  int32_t array_stride;
+  int32_t matrix_stride;
+  int32_t is_row_major;
+};
+
+// The format of the bucket filled out by GetUniformsivES3CHROMIUM
+struct UniformsES3Header {
+  uint32_t num_uniforms;
+  // UniformES3Info uniforms[num_uniforms];
+};
+
 // The format of QuerySync used by EXT_occlusion_query_boolean
 struct QuerySync {
   void Reset() {