gpu, cmaa: improve |do_copy| condition logic

gpu/command_buffer/service/gles2_cmd_apply_framebuffer_attachment_cmaa_intel.h

Index: gpu/command_buffer/service/gles2_cmd_apply_framebuffer_attachment_cmaa_intel.h
diff --git a/gpu/command_buffer/service/gles2_cmd_apply_framebuffer_attachment_cmaa_intel.h b/gpu/command_buffer/service/gles2_cmd_apply_framebuffer_attachment_cmaa_intel.h
index 497b8c68d386e5ed47125895afa0c242a736bd60..f9bad673293257f54fde6df01267c1f06d731c19 100644
--- a/gpu/command_buffer/service/gles2_cmd_apply_framebuffer_attachment_cmaa_intel.h
+++ b/gpu/command_buffer/service/gles2_cmd_apply_framebuffer_attachment_cmaa_intel.h
@@ -13,6 +13,7 @@ namespace gles2 {
 class CopyTextureCHROMIUMResourceManager;
 class GLES2Decoder;
 class Framebuffer;
+class TextureManager;
 
 // This class encapsulates the resources required to implement the
 // GL_INTEL_framebuffer_CMAA extension via shaders.
@@ -32,9 +33,10 @@ class GPU_EXPORT ApplyFramebufferAttachmentCMAAINTELResourceManager {
   // Applies the algorithm to the color attachments of the currently bound draw
   // framebuffer.
   void ApplyFramebufferAttachmentCMAAINTEL(
-      gles2::GLES2Decoder* decoder,
-      gles2::Framebuffer* framebuffer,
-      gles2::CopyTextureCHROMIUMResourceManager* copier);
+      GLES2Decoder* decoder,
+      Framebuffer* framebuffer,
+      CopyTextureCHROMIUMResourceManager* copier,
+      TextureManager* texture_manager);

[Zhenyao Mo, 2016/12/09 18:21:05]

I prefer exposing texture_manager() to GLES2Decoder so we don't have to pass it
as an arg, but it's not a big deal.

[dshwang, 2017/01/12 17:19:34]

That's good idea, but currently this kind of method is exposed at
GLES2DecoderImpl, which is defined in cc file. Few managers are exposed at
GLES2Decoder, but all are for unittests. Let me keep consistency with existing
code.

 
  private:
   // Applies the CMAA algorithm to a texture.