HDR: Do nonlinear blending in the compositor

cc/output/gl_renderer_unittest.cc

Index: cc/output/gl_renderer_unittest.cc
diff --git a/cc/output/gl_renderer_unittest.cc b/cc/output/gl_renderer_unittest.cc
index 32222128163456156ee4ae2a236312e217247d8d..9ebba2bad9b203642d93026fc5ce6f71281b4f2f 100644
--- a/cc/output/gl_renderer_unittest.cc
+++ b/cc/output/gl_renderer_unittest.cc
@@ -138,7 +138,7 @@ class GLRendererShaderPixelTest : public GLRendererPixelTest {
     const size_t kNumSrcColorSpaces = 4;
     gfx::ColorSpace src_color_spaces[kNumSrcColorSpaces] = {
         gfx::ColorSpace(), gfx::ColorSpace::CreateSRGB(),
-        gfx::ColorSpace::CreateREC709(),
+        gfx::ColorSpace::CreateREC709(), gfx::ColorSpace::CreateExtendedSRGB(),

[ccameron, 2017/03/05 21:08:48]

I think it was just dumb luck that this didn't crash all over the place before
(src_color_spaces[3] was just memset to 0...).

[enne (OOO), 2017/03/06 19:56:12]

@_@

     };
     const size_t kNumDstColorSpaces = 3;
     gfx::ColorSpace dst_color_spaces[kNumDstColorSpaces] = {