Remove usages of XInternAtom

ui/base/clipboard/clipboard_aurax11.cc

Index: ui/base/clipboard/clipboard_aurax11.cc
diff --git a/ui/base/clipboard/clipboard_aurax11.cc b/ui/base/clipboard/clipboard_aurax11.cc
index 39e864738f682bd38aa41e3fe66bb17392796d10..3def226d17c4c2fefd71691c7b4218b4412573ad 100644
--- a/ui/base/clipboard/clipboard_aurax11.cc
+++ b/ui/base/clipboard/clipboard_aurax11.cc
@@ -34,7 +34,6 @@
 #include "ui/events/platform/platform_event_source.h"
 #include "ui/gfx/codec/png_codec.h"
 #include "ui/gfx/geometry/size.h"
-#include "ui/gfx/x/x11_atom_cache.h"
 
 namespace ui {
 
@@ -46,19 +45,6 @@ const char kMimeTypeFilename[] = "chromium/filename";
 const char kSaveTargets[] = "SAVE_TARGETS";
 const char kTargets[] = "TARGETS";
 
-const char* kAtomsToCache[] = {kClipboard,
-                               kClipboardManager,
-                               Clipboard::kMimeTypePNG,
-                               kMimeTypeFilename,
-                               Clipboard::kMimeTypeMozillaURL,
-                               Clipboard::kMimeTypeWebkitSmartPaste,
-                               kSaveTargets,
-                               kString,
-                               kTargets,
-                               kText,
-                               kUtf8String,
-                               nullptr};
-
 ///////////////////////////////////////////////////////////////////////////////
 
 // Uses the XFixes API to provide sequence numbers for GetSequenceNumber().
@@ -96,7 +82,7 @@ SelectionChangeObserver::SelectionChangeObserver()
       primary_sequence_number_(0) {
   int ignored;
   if (XFixesQueryExtension(gfx::GetXDisplay(), &event_base_, &ignored)) {
-    clipboard_atom_ = XInternAtom(gfx::GetXDisplay(), kClipboard, false);
+    clipboard_atom_ = GetAtom(kClipboard);
     XFixesSelectSelectionInput(gfx::GetXDisplay(), GetX11RootWindow(),
                                clipboard_atom_,
                                XFixesSetSelectionOwnerNotifyMask |
@@ -145,7 +131,7 @@ class TargetList {
  public:
   typedef std::vector< ::Atom> AtomVector;
 
-  TargetList(const AtomVector& target_list, X11AtomCache* atom_cache);
+  explicit TargetList(const AtomVector& target_list);
 
   const AtomVector& target_list() { return target_list_; }
 
@@ -155,17 +141,13 @@ class TargetList {
 
  private:
   AtomVector target_list_;
-  X11AtomCache* atom_cache_;
 };
 
-TargetList::TargetList(const AtomVector& target_list,
-                       X11AtomCache* atom_cache)
-    : target_list_(target_list),
-      atom_cache_(atom_cache) {
-}
+TargetList::TargetList(const AtomVector& target_list)
+    : target_list_(target_list) {}
 
 bool TargetList::ContainsText() const {
-  std::vector< ::Atom> atoms = GetTextAtomsFrom(atom_cache_);
+  std::vector<::Atom> atoms = GetTextAtomsFrom();
   for (std::vector< ::Atom>::const_iterator it = atoms.begin();
        it != atoms.end(); ++it) {
     if (ContainsAtom(*it))
@@ -177,7 +159,7 @@ bool TargetList::ContainsText() const {
 
 bool TargetList::ContainsFormat(
     const Clipboard::FormatType& format_type) const {
-  ::Atom atom = atom_cache_->GetAtom(format_type.ToString().c_str());
+  ::Atom atom = GetAtom(format_type.ToString().c_str());
   return ContainsAtom(atom);
 }
 
@@ -233,8 +215,6 @@ class ClipboardAuraX11::AuraX11Details : public PlatformEventDispatcher {
   AuraX11Details();
   ~AuraX11Details() override;
 
-  X11AtomCache* atom_cache() { return &atom_cache_; }
-
   // Returns the X11 type that we pass to various XSelection functions for the
   // given type.
   ::Atom LookupSelectionForClipboardType(ClipboardType type) const;
@@ -305,8 +285,6 @@ class ClipboardAuraX11::AuraX11Details : public PlatformEventDispatcher {
   // Events selected on |x_window_|.
   std::unique_ptr<XScopedEventSelector> x_window_events_;
 
-  X11AtomCache atom_cache_;
-
   // Object which requests and receives selection data.
   SelectionRequestor selection_requestor_;
 
@@ -335,13 +313,9 @@ ClipboardAuraX11::AuraX11Details::AuraX11Details()
                               CopyFromParent,  // visual
                               0,
                               NULL)),
-      atom_cache_(x_display_, kAtomsToCache),
       selection_requestor_(x_display_, x_window_, this),
-      clipboard_owner_(x_display_, x_window_, atom_cache_.GetAtom(kClipboard)),
+      clipboard_owner_(x_display_, x_window_, GetAtom(kClipboard)),
       primary_owner_(x_display_, x_window_, XA_PRIMARY) {
-  // We don't know all possible MIME types at compile time.
-  atom_cache_.allow_uncached_atoms();
-
   XStoreName(x_display_, x_window_, "Chromium clipboard");
   x_window_events_.reset(
       new XScopedEventSelector(x_window_, PropertyChangeMask));
@@ -366,7 +340,7 @@ ClipboardAuraX11::AuraX11Details::~AuraX11Details() {
 }
 
 ::Atom ClipboardAuraX11::AuraX11Details::GetCopyPasteSelection() const {
-  return atom_cache_.GetAtom(kClipboard);
+  return GetAtom(kClipboard);
 }
 
 const SelectionFormatMap&
@@ -385,7 +359,7 @@ void ClipboardAuraX11::AuraX11Details::CreateNewClipboardData() {
 void ClipboardAuraX11::AuraX11Details::InsertMapping(
     const std::string& key,
     const scoped_refptr<base::RefCountedMemory>& memory) {
-  ::Atom atom_key = atom_cache_.GetAtom(key.c_str());
+  ::Atom atom_key = GetAtom(key.c_str());
   clipboard_data_.Insert(atom_key, memory);
 }
 
@@ -443,13 +417,10 @@ TargetList ClipboardAuraX11::AuraX11Details::WaitAndGetTargetsList(
     ::Atom out_type = None;
 
     if (selection_requestor_.PerformBlockingConvertSelection(
-            selection_name,
-            atom_cache_.GetAtom(kTargets),
-            &data,
-            &out_data_items,
+            selection_name, GetAtom(kTargets), &data, &out_data_items,
             &out_type)) {
       // Some apps return an |out_type| of "TARGETS". (crbug.com/377893)
-      if (out_type == XA_ATOM || out_type == atom_cache_.GetAtom(kTargets)) {
+      if (out_type == XA_ATOM || out_type == GetAtom(kTargets)) {
         const ::Atom* atom_array =
             reinterpret_cast<const ::Atom*>(data->front());
         for (size_t i = 0; i < out_data_items; ++i)
@@ -478,17 +449,17 @@ TargetList ClipboardAuraX11::AuraX11Details::WaitAndGetTargetsList(
     }
   }
 
-  return TargetList(out, &atom_cache_);
+  return TargetList(out);
 }
 
 std::vector<::Atom> ClipboardAuraX11::AuraX11Details::GetTextAtoms() const {
-  return GetTextAtomsFrom(&atom_cache_);
+  return GetTextAtomsFrom();
 }
 
 std::vector<::Atom> ClipboardAuraX11::AuraX11Details::GetAtomsForFormat(
     const Clipboard::FormatType& format) {
   std::vector< ::Atom> atoms;
-  atoms.push_back(atom_cache_.GetAtom(format.ToString().c_str()));
+  atoms.push_back(GetAtom(format.ToString().c_str()));
   return atoms;
 }
 
@@ -504,7 +475,7 @@ void ClipboardAuraX11::AuraX11Details::StoreCopyPasteDataAndWait() {
   if (XGetSelectionOwner(x_display_, selection) != x_window_)
     return;
 
-  ::Atom clipboard_manager_atom = atom_cache_.GetAtom(kClipboardManager);
+  ::Atom clipboard_manager_atom = GetAtom(kClipboardManager);
   if (XGetSelectionOwner(x_display_, clipboard_manager_atom) == None)
     return;
 
@@ -515,9 +486,7 @@ void ClipboardAuraX11::AuraX11Details::StoreCopyPasteDataAndWait() {
 
   base::TimeTicks start = base::TimeTicks::Now();
   selection_requestor_.PerformBlockingConvertSelectionWithParameter(
-      atom_cache_.GetAtom(kClipboardManager),
-      atom_cache_.GetAtom(kSaveTargets),
-      targets);
+      GetAtom(kClipboardManager), GetAtom(kSaveTargets), targets);
   UMA_HISTOGRAM_TIMES("Clipboard.X11StoreCopyPasteDuration",
                       base::TimeTicks::Now() - start);
 }