DevTools: [Android] implement RenderWidgetHostViewAndroid::CopyFromCompositingSurface

content/browser/renderer_host/render_widget_host_view_android.cc

Index: content/browser/renderer_host/render_widget_host_view_android.cc
diff --git a/content/browser/renderer_host/render_widget_host_view_android.cc b/content/browser/renderer_host/render_widget_host_view_android.cc
index 3282ca90a83396f4a3ba30abcba21f6c6c902c56..490f856875a9c4171030d3b7b0b0c8c4ff69064b 100644
--- a/content/browser/renderer_host/render_widget_host_view_android.cc
+++ b/content/browser/renderer_host/render_widget_host_view_android.cc
@@ -271,6 +271,35 @@ bool RenderWidgetHostViewAndroid::PopulateBitmapWithContents(jobject jbitmap) {
   return true;
 }
 
+bool RenderWidgetHostViewAndroid::PopulateBitmapWithContents(

[no sievers, 2013/08/05 21:46:44]

Oh no... we are trying to deprecate any readbacks in here that are not
RWHV::CopyFromCopositingSurface().

+    const gfx::Size& size, SkBitmap* bitmap) {
+  if (!CompositorImpl::IsInitialized() ||
+      texture_id_in_layer_ == 0 ||
+      texture_size_in_layer_.IsEmpty())
+    return false;
+
+  GLHelper* helper = ImageTransportFactoryAndroid::GetInstance()->GetGLHelper();
+
+  WebKit::WebGLId texture = helper->CopyAndScaleTexture(
+      texture_id_in_layer_,
+      texture_size_in_layer_,
+      size,
+      true,
+      GLHelper::SCALER_QUALITY_FAST);
+  if (texture == 0)
+    return false;
+
+  helper->ReadbackTextureSync(texture,
+                              gfx::Rect(size),
+                              static_cast<unsigned char*> (bitmap->getPixels()));
+
+  WebKit::WebGraphicsContext3D* context =
+      ImageTransportFactoryAndroid::GetInstance()->GetContext3D();
+  context->deleteTexture(texture);
+
+  return true;
+}
+
 bool RenderWidgetHostViewAndroid::HasValidFrame() const {
   return texture_id_in_layer_ != 0 &&
       content_view_core_ &&