Revert of Add compositor support for half-float RGBA buffers and textures

gpu/command_buffer/service/test_helper.cc

 // Copyright (c) 2012 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 "gpu/command_buffer/service/test_helper.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 476 matching lines @@
 void TestHelper::SetupFeatureInfoInitExpectationsWithGLVersion(
     ::gl::MockGLInterface* gl,
     const char* extensions,
     const char* gl_renderer,
     const char* gl_version,
     ContextType context_type) {
   InSequence sequence;
 
   bool enable_es3 = context_type == CONTEXT_TYPE_WEBGL2 ||
       context_type == CONTEXT_TYPE_OPENGLES3;
-  bool allow_float_buffers = context_type != CONTEXT_TYPE_WEBGL1;
 
   EXPECT_CALL(*gl, GetString(GL_VERSION))
       .WillOnce(Return(reinterpret_cast<const uint8_t*>(gl_version)))
       .RetiresOnSaturation();
 
   // Persistent storage is needed for the split extension string.
   split_extensions_.clear();
   if (extensions) {
     split_extensions_ = base::SplitString(
         extensions, " ", base::KEEP_WHITESPACE, base::SPLIT_WANT_NONEMPTY);
@@ skipping 77 matching lines @@
     if (gl_info.is_es3) {
       EXPECT_CALL(*gl, CheckFramebufferStatusEXT(GL_FRAMEBUFFER))
           .WillOnce(Return(GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT))
           .RetiresOnSaturation();
     } else {
       EXPECT_CALL(*gl, CheckFramebufferStatusEXT(GL_FRAMEBUFFER))
           .WillOnce(Return(GL_FRAMEBUFFER_COMPLETE))
           .RetiresOnSaturation();
     }
 
-    if (status_rgba == GL_FRAMEBUFFER_COMPLETE && allow_float_buffers) {
+    if (status_rgba == GL_FRAMEBUFFER_COMPLETE && enable_es3) {
       EXPECT_CALL(*gl, TexImage2D(GL_TEXTURE_2D, 0, GL_R16F, width, width,
           0, GL_RED, GL_FLOAT, _))
           .Times(1)
           .RetiresOnSaturation();
       EXPECT_CALL(*gl, CheckFramebufferStatusEXT(GL_FRAMEBUFFER))
           .Times(1)
           .RetiresOnSaturation();
       EXPECT_CALL(*gl, TexImage2D(GL_TEXTURE_2D, 0, GL_RG16F, width, width,
           0, GL_RG, GL_FLOAT, _))
           .Times(1)
@@ skipping 599 matching lines @@
     GLenum precision,
     bool static_use,
     const std::string& name) {
   return ConstructShaderVariable<sh::OutputVariable>(
       type, array_size, precision, static_use, name);
 }
 
 }  // namespace gles2
 }  // namespace gpu