gpu: Pepper3DImageChromium support on ChromeOS.

gpu/ipc/service/gpu_memory_buffer_factory_ozone_native_pixmap.cc

Index: gpu/ipc/service/gpu_memory_buffer_factory_ozone_native_pixmap.cc
diff --git a/gpu/ipc/service/gpu_memory_buffer_factory_ozone_native_pixmap.cc b/gpu/ipc/service/gpu_memory_buffer_factory_ozone_native_pixmap.cc
index e59f155c6ee0413af8179a103f02bab0f1c3bbc6..f35df29591e33046b6014e62ad2a6925e0f4def9 100644
--- a/gpu/ipc/service/gpu_memory_buffer_factory_ozone_native_pixmap.cc
+++ b/gpu/ipc/service/gpu_memory_buffer_factory_ozone_native_pixmap.cc
@@ -115,4 +115,32 @@ GpuMemoryBufferFactoryOzoneNativePixmap::CreateImageForGpuMemoryBuffer(
   return image;
 }
 
+scoped_refptr<gl::GLImage>
+GpuMemoryBufferFactoryOzoneNativePixmap::CreateAnonymousImage(
+    const gfx::Size& size,
+    gfx::BufferFormat format,
+    unsigned internalformat) {
+  scoped_refptr<ui::NativePixmap> pixmap =
+      ui::OzonePlatform::GetInstance()
+          ->GetSurfaceFactoryOzone()
+          ->CreateNativePixmap(gpu::kNullSurfaceHandle, size, format,
+                               gfx::BufferUsage::SCANOUT);
+  if (!pixmap.get()) {
+    LOG(ERROR) << "Failed to create pixmap " << size.width() << "x"
+               << size.height() << " format " << static_cast<int>(format);

[Daniele Castagna, 2017/01/14 22:55:49]

nit: It'd be nice to have a string for the format instead of the enum number.

[reveman, 2017/01/14 23:23:46]

Agreed but adding utility function for that is outside the scope of this CL as
discussed.

+    return nullptr;
+  }
+  scoped_refptr<ui::GLImageOzoneNativePixmap> image(
+      new ui::GLImageOzoneNativePixmap(size, internalformat));
+  if (!image->Initialize(pixmap.get(), format)) {
+    LOG(ERROR) << "Failed to create GLImage";

[Daniele Castagna, 2017/01/14 22:55:49]

nit: format and size might still be useful here.

[reveman, 2017/01/14 23:23:46]

Done.

+    return nullptr;
+  }
+  return image;
+}
+
+unsigned GpuMemoryBufferFactoryOzoneNativePixmap::RequiredTextureType() {
+  return GL_TEXTURE_EXTERNAL_OES;
+}
+
 }  // namespace gpu