Don't invert contentsDeviceTransform twice when rendering render passes.

cc/gl_renderer.h

Index: cc/gl_renderer.h
diff --git a/cc/gl_renderer.h b/cc/gl_renderer.h
index c47eefda49f7db183ed47dce2a4042f5d37f2b6f..244467da1be5d5b61fb6f75bc0b37acc45cdb7ab 100644
--- a/cc/gl_renderer.h
+++ b/cc/gl_renderer.h
@@ -91,7 +91,7 @@ private:
 
     void drawCheckerboardQuad(const DrawingFrame&, const CheckerboardDrawQuad*);
     void drawDebugBorderQuad(const DrawingFrame&, const DebugBorderDrawQuad*);
-    scoped_ptr<ScopedTexture> drawBackgroundFilters(DrawingFrame&, const RenderPassDrawQuad*, const WebKit::WebFilterOperations&, const WebKit::WebTransformationMatrix& deviceTransform);
+    scoped_ptr<ScopedTexture> drawBackgroundFilters(DrawingFrame&, const RenderPassDrawQuad*, const WebKit::WebFilterOperations&, const WebKit::WebTransformationMatrix&, const WebKit::WebTransformationMatrix&);

[jamesr, 2012/11/06 23:53:43]

please provide names for the last two parameters. we omit parameter names when
they are clear from the type (i.e. "DrawingFrame& is probably a drawing frame),
but with two matrices it's impossible to guess the meaning from just the
signature

     void drawRenderPassQuad(DrawingFrame&, const RenderPassDrawQuad*);
     void drawSolidColorQuad(const DrawingFrame&, const SolidColorDrawQuad*);
     void drawStreamVideoQuad(const DrawingFrame&, const StreamVideoDrawQuad*);