Use GLES2Interface for shaders and programs

cc/output/shader_unittest.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/output/shader.h"
 
-#include "cc/test/fake_web_graphics_context_3d.h"
+#include "gpu/command_buffer/client/gles2_interface_stub.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/gfx/point.h"
 #include "ui/gfx/size.h"
 
 namespace cc {
 
 TEST(ShaderTest, HighpThresholds) {
   // The FakeWebGraphicsContext3D always uses a mediump precision of 10 bits

[danakj, 2013/12/03 19:24:49]

Comment needs updating, and verify this is still true for the stub?

[jamesr, 2013/12/04 01:50:21]

Good catch.  It isn't - I've changed this back to using the old test class and
forwarded the GLES2Interface::GetShaderPrecisionFormat() call to make sure it's
still hitting the old codepath.  Interestingly this test passes even if
GetShaderPrecisionFormat() is a no-op, indicating that it might not be a very
good test.

   // which corresponds to a native highp threshold of 2^10 = 1024
-  FakeWebGraphicsContext3D context;
+  gpu::gles2::GLES2InterfaceStub stub_context;
 
   int threshold_cache = 0;
   int threshold_min;
   gfx::Point closePoint(512, 512);
   gfx::Size smallSize(512, 512);
   gfx::Point farPoint(2560, 2560);
   gfx::Size bigSize(2560, 2560);
 
   threshold_min = 0;
   EXPECT_EQ(TexCoordPrecisionMedium, TexCoordPrecisionRequired(
-      &context, &threshold_cache, threshold_min, closePoint));
+      &stub_context, &threshold_cache, threshold_min, closePoint));
   EXPECT_EQ(TexCoordPrecisionMedium, TexCoordPrecisionRequired(
-      &context, &threshold_cache, threshold_min, smallSize));
+      &stub_context, &threshold_cache, threshold_min, smallSize));
   EXPECT_EQ(TexCoordPrecisionHigh, TexCoordPrecisionRequired(
-      &context, &threshold_cache, threshold_min, farPoint));
+      &stub_context, &threshold_cache, threshold_min, farPoint));
   EXPECT_EQ(TexCoordPrecisionHigh, TexCoordPrecisionRequired(
-      &context, &threshold_cache, threshold_min, bigSize));
+      &stub_context, &threshold_cache, threshold_min, bigSize));
 
   threshold_min = 3000;
   EXPECT_EQ(TexCoordPrecisionMedium, TexCoordPrecisionRequired(
-      &context, &threshold_cache, threshold_min, closePoint));
+      &stub_context, &threshold_cache, threshold_min, closePoint));
   EXPECT_EQ(TexCoordPrecisionMedium, TexCoordPrecisionRequired(
-      &context, &threshold_cache, threshold_min, smallSize));
+      &stub_context, &threshold_cache, threshold_min, smallSize));
   EXPECT_EQ(TexCoordPrecisionMedium, TexCoordPrecisionRequired(
-      &context, &threshold_cache, threshold_min, farPoint));
+      &stub_context, &threshold_cache, threshold_min, farPoint));
   EXPECT_EQ(TexCoordPrecisionMedium, TexCoordPrecisionRequired(
-      &context, &threshold_cache, threshold_min, bigSize));
+      &stub_context, &threshold_cache, threshold_min, bigSize));
 }
 
 }  // namespace cc