Rendering text on insecure-site warnings for WebVR

chrome/browser/android/vr_shell/textures/insecure_content_permanent_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/insecure_content_permanent_texture.h"
 
 #include "cc/paint/skia_paint_canvas.h"
 #include "chrome/grit/generated_resources.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/gfx/canvas.h"
+#include "ui/gfx/font_list.h"
 #include "ui/gfx/geometry/rect.h"
 #include "ui/gfx/geometry/vector2d.h"
 #include "ui/gfx/paint_vector_icon.h"
 #include "ui/gfx/vector_icon_types.h"
 #include "ui/vector_icons/vector_icons.h"
 
 namespace vr_shell {
 
 namespace {
 
@@ skipping 11 matching lines @@
   height_ = texture_size_ / 4;
 }
 
 InsecureContentPermanentTexture::~InsecureContentPermanentTexture() = default;
 
 void InsecureContentPermanentTexture::Draw(gfx::Canvas* canvas) {
   cc::PaintFlags flags;
   flags.setColor(kBackgroundColor);
   canvas->DrawRoundRect(gfx::Rect(texture_size_, height_), height_ * 0.1,
                         flags);
+
+  // TODO(acondor): Layout icon on the right for RTL languages.
   canvas->Save();
   canvas->Translate({height_ * 0.1, height_ * 0.1});
   PaintVectorIcon(canvas, ui::kInfoOutlineIcon, height_ * 0.8,
                   kForegroundColor);
   canvas->Restore();
+
   canvas->Save();
   canvas->Translate({height_, height_ * 0.1});
-  // TODO(acondor): Draw text IDS_PAGE_INFO_INSECURE_WEBVR_CONTENT_PERMANENT.
+  // TODO(acondor): Measure text width to remove empty space.
+  int text_flags = gfx::Canvas::TEXT_ALIGN_CENTER;
+  auto text =
+      l10n_util::GetStringUTF16(IDS_PAGE_INFO_INSECURE_WEBVR_CONTENT_PERMANENT);
+  canvas->DrawStringRectWithFlags(
+      text, GetFontList(height_ * 0.3, text), kForegroundColor,

[mthiesse, 2017/04/18 21:30:35]

Can you make constants for the magic numbers (like 0.3, 2.9, etc.) and briefly
explain where they come from?

[acondor_, 2017/04/18 23:48:46]

Done.

+      {0, 0, 2.9 * height_, 0.8 * height_}, text_flags);
   canvas->Restore();
 }
 
 void InsecureContentPermanentTexture::SetSize() {
   size_.SetSize(texture_size_, height_);
 }
 
 }  // namespace vr_shell