Auto merge of #6317 - frewsxcv:rm-util-crate-reexports, r=Ms2ger

The util component specified fnv and smallvec as dependencies and publicly
reexported both of them. Several other components utilized these reexports,
presumably because fnv and smallvec used to live in the tree so reexporting
made the transition easier.

These indirect dependencies through the util component are unnecessary.

This commit removes the fnv & smallvec crate reexports in the util component.
It exchange, it adds fnv & smallvec as dependencies to non-util components
wherever needed. Finally, it removes the fnv dependency from util as it is not
utilized anywhere in the util component.

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components/script/dom/bindings/trace.rs

@@ -53,10 +53,10 @@ use net_traits::image_cache_task::{ImageCacheChan, ImageCacheTask};
 use net_traits::storage_task::StorageType;
 use script_traits::ScriptControlChan;
 use script_traits::UntrustedNodeAddress;
+use smallvec::SmallVec1;
 use msg::compositor_msg::ScriptListener;
 use msg::constellation_msg::ConstellationChan;
 use net_traits::image::base::Image;
-use util::smallvec::SmallVec1;
 use util::str::{LengthOrPercentageOrAuto};
 use std::cell::{Cell, RefCell};
 use std::collections::{HashMap, HashSet};

components/script/dom/element.rs

@@ -61,6 +61,7 @@ use dom::nodelist::NodeList;
 use dom::virtualmethods::{VirtualMethods, vtable_for};
 
 use devtools_traits::AttrInfo;
+use smallvec::VecLike;
 use style;
 use style::legacy::{UnsignedIntegerAttribute, from_declaration};
 use style::properties::{PropertyDeclarationBlock, PropertyDeclaration, parse_style_attribute};
@@ -70,7 +71,6 @@ use style::values::CSSFloat;
 use style::values::specified::{self, CSSColor, CSSRGBA};
 use util::geometry::Au;
 use util::namespace;
-use util::smallvec::VecLike;
 use util::str::{DOMString, LengthOrPercentageOrAuto};
 
 use cssparser::Color;

components/script/dom/eventtarget.rs

@@ -19,9 +19,9 @@ use dom::xmlhttprequesteventtarget::XMLHttpRequestEventTargetTypeId;
 use dom::virtualmethods::VirtualMethods;
 use js::jsapi::{JS_CompileUCFunction, JS_GetFunctionObject, JS_CloneFunctionObject};
 use js::jsapi::{JSContext, JSObject};
-use util::fnv::FnvHasher;
 use util::str::DOMString;
 
+use fnv::FnvHasher;
 use libc::{c_char, size_t};
 use std::borrow::ToOwned;
 use std::collections::hash_map::Entry::{Occupied, Vacant};