Enable gpu rasterization in the vr shell

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

Index: chrome/browser/android/vr_shell/textures/insecure_content_permanent_texture.cc
diff --git a/chrome/browser/android/vr_shell/textures/insecure_content_permanent_texture.cc b/chrome/browser/android/vr_shell/textures/insecure_content_permanent_texture.cc
index c166797dac6814af3bc5bf2f068fba702a5fea0c..234815a65046e1a3e6af6822fa3ceb489262be66 100644
--- a/chrome/browser/android/vr_shell/textures/insecure_content_permanent_texture.cc
+++ b/chrome/browser/android/vr_shell/textures/insecure_content_permanent_texture.cc
@@ -4,6 +4,7 @@
 
 #include "chrome/browser/android/vr_shell/textures/insecure_content_permanent_texture.h"
 
+#include "base/trace_event/trace_event.h"
 #include "cc/paint/skia_paint_canvas.h"
 #include "components/strings/grit/components_strings.h"
 #include "ui/base/l10n/l10n_util.h"
@@ -35,16 +36,23 @@ InsecureContentPermanentTexture::~InsecureContentPermanentTexture() = default;
 
 void InsecureContentPermanentTexture::Draw(gfx::Canvas* canvas,
                                            const gfx::Size& texture_size) {
+  TRACE_EVENT0("gpu,vr", "InsecureContentPermanentTexture::Draw");
   DCHECK(texture_size.height() * 4 == texture_size.width());
   size_.set_height(texture_size.height());
   int max_width = texture_size.width();
   cc::PaintFlags flags;
   flags.setColor(kBackgroundColor);
 
+  TRACE_EVENT_BEGIN0("gpu,vr", "GetStringUTF16");
   int text_flags = gfx::Canvas::TEXT_ALIGN_CENTER | gfx::Canvas::NO_ELLIPSIS;
   auto text =
       l10n_util::GetStringUTF16(IDS_PAGE_INFO_INSECURE_WEBVR_CONTENT_PERMANENT);
+  TRACE_EVENT_END0("gpu,vr", "GetStringUTF16");
+
+  TRACE_EVENT_BEGIN0("gpu,vr", "GetFontList");
   auto fonts = GetFontList(size_.height() * kFontSizeFactor, text);
+  TRACE_EVENT_END0("gpu,vr", "GetFontList");
+
   int text_height = kTextHeightFactor * size_.height();
   int text_width = kTextWidthFactor * size_.height();
   gfx::Canvas::SizeStringInt(text, fonts, &text_width, &text_height, 0,
@@ -73,9 +81,12 @@ void InsecureContentPermanentTexture::Draw(gfx::Canvas* canvas,
       size_.height() *
           (IsRTL() ? kBorderFactor : 2 * kBorderFactor + kIconSizeFactor),
       size_.height() * kBorderFactor));
+
+  TRACE_EVENT_BEGIN0("gpu,vr", "DrawStringRectWithFlags");
   canvas->DrawStringRectWithFlags(
       text, fonts, kForegroundColor,
       gfx::Rect(text_width, kTextHeightFactor * size_.height()), text_flags);
+  TRACE_EVENT_END0("gpu,vr", "DrawStringRectWithFlags");
   canvas->Restore();
 }