ozone: Consolidate primary plane format.

components/display_compositor/buffer_queue.cc

Index: components/display_compositor/buffer_queue.cc
diff --git a/components/display_compositor/buffer_queue.cc b/components/display_compositor/buffer_queue.cc
index bcdb62c3d21157019b5df48f4ea8c1ded7670a95..49b9cdb97264e1873e3e9d0d1d3e756e75bdbcab 100644
--- a/components/display_compositor/buffer_queue.cc
+++ b/components/display_compositor/buffer_queue.cc
@@ -14,6 +14,7 @@
 #include "gpu/command_buffer/common/gpu_memory_buffer_support.h"
 #include "third_party/skia/include/core/SkRect.h"
 #include "third_party/skia/include/core/SkRegion.h"
+#include "ui/display/types/display_mode.h"
 #include "ui/gfx/gpu_memory_buffer.h"
 #include "ui/gfx/skia_util.h"
 
@@ -212,10 +213,11 @@ std::unique_ptr<BufferQueue::AllocatedSurface> BufferQueue::GetNextSurface() {
   // We don't want to allow anything more than triple buffering.
   DCHECK_LT(allocated_count_, 4U);
 
+  gfx::BufferFormat format = ui::DisplayMode::PrimaryFormat();
+  DCHECK_EQ(static_cast<uint32_t>(GL_RGBA), internal_format_);
   std::unique_ptr<gfx::GpuMemoryBuffer> buffer(
       gpu_memory_buffer_manager_->AllocateGpuMemoryBuffer(
-          size_, gpu::DefaultBufferFormatForImageFormat(internal_format_),
-          gfx::BufferUsage::SCANOUT, surface_handle_));
+          size_, format, gfx::BufferUsage::SCANOUT, surface_handle_));
   if (!buffer.get()) {
     gl_->DeleteTextures(1, &texture);
     DLOG(ERROR) << "Failed to allocate GPU memory buffer";