Plumb through cropped output size for VideoFrame

cc/gl_renderer.cc

Index: cc/gl_renderer.cc
diff --git a/cc/gl_renderer.cc b/cc/gl_renderer.cc
index 1c4fec29be73976daaf395194e736c91fe30c564..462fcb7c39e1d1d82beded9d71094faa576f4820 100644
--- a/cc/gl_renderer.cc
+++ b/cc/gl_renderer.cc
@@ -865,12 +865,7 @@ void GLRenderer::drawYUVVideoQuad(const DrawingFrame& frame, const YUVVideoDrawQ
 
     GLC(context(), context()->useProgram(program->program()));
 
-    float yWidthScaleFactor = static_cast<float>(yPlane.visibleSize.width()) / yPlane.size.width();
-    // Arbitrarily take the u sizes because u and v dimensions are identical.
-    float uvWidthScaleFactor = static_cast<float>(uPlane.visibleSize.width()) / uPlane.size.width();
-    GLC(context(), context()->uniform1f(program->vertexShader().yWidthScaleFactorLocation(), yWidthScaleFactor));
-    GLC(context(), context()->uniform1f(program->vertexShader().uvWidthScaleFactorLocation(), uvWidthScaleFactor));
-
+    GLC(context(), context()->uniform2f(program->vertexShader().texScaleLocation(), quad->texScale().width(), quad->texScale().height()));
     GLC(context(), context()->uniform1i(program->fragmentShader().yTextureLocation(), 1));
     GLC(context(), context()->uniform1i(program->fragmentShader().uTextureLocation(), 2));
     GLC(context(), context()->uniform1i(program->fragmentShader().vTextureLocation(), 3));