VR: Add initial URL bar element and texture.

chrome/browser/android/vr_shell/textures/ui_texture.cc

 // Copyright 2017 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/android/vr_shell/textures/ui_texture.h"
 
 #include <set>
 #include <string>
 #include <vector>
 
 #include "base/i18n/char_iterator.h"
 #include "base/i18n/rtl.h"
 #include "base/memory/ptr_util.h"
 #include "base/strings/string_util.h"
 #include "chrome/browser/browser_process.h"
 #include "third_party/skia/include/core/SkCanvas.h"
 #include "third_party/skia/include/ports/SkFontMgr.h"
 #include "ui/gfx/canvas.h"
 #include "ui/gfx/font_list.h"
 #include "ui/gl/gl_bindings.h"
 
 namespace vr_shell {
 
 namespace {
-constexpr char kDefaultFontFamily[] = "sans-serif";
+
+static constexpr char kDefaultFontFamily[] = "sans-serif";
+
 }  // namespace
 
 UiTexture::UiTexture() = default;
 
 UiTexture::~UiTexture() = default;
 
 void UiTexture::DrawAndLayout(SkCanvas* canvas, const gfx::Size& texture_size) {
-  cc::SkiaPaintCanvas paint_canvas(canvas);
-  gfx::Canvas gfx_canvas(&paint_canvas, 1.0f);
-  gfx_canvas.DrawColor(SK_ColorTRANSPARENT);
-  Draw(&gfx_canvas, texture_size);
+  canvas->drawColor(SK_ColorTRANSPARENT);
+  Draw(canvas, texture_size);
 }
 
 bool UiTexture::IsRTL() {
   return base::i18n::IsRTL();
 }
 
+gfx::FontList UiTexture::GetDefaultFontList(int size) {
+  return gfx::FontList(gfx::Font(kDefaultFontFamily, size));
+}
+
 gfx::FontList UiTexture::GetFontList(int size, base::string16 text) {
   gfx::Font default_font(kDefaultFontFamily, size);
   std::vector<gfx::Font> fonts{default_font};
 
   std::set<wchar_t> characters;
   for (base::i18n::UTF16CharIterator it(&text); !it.end(); it.Advance()) {
     characters.insert(it.get());
   }
   // TODO(acondor): Obtain fallback fonts with gfx::GetFallbackFonts
   // (which is not implemented for android yet) in order to avoid
@@ skipping 14 matching lines @@
     std::string name(sk_name.c_str());
     if (name != kDefaultFontFamily)
       names.insert(name);
   }
   for (const auto& name : names)
     fonts.push_back(gfx::Font(name, size));
   return gfx::FontList(fonts);
 }
 
 }  // namespace vr_shell