Reland of ui/gl: Initialize the ANGLE Platform on all configurations

ui/gl/egl_api_unittest.cc

 // Copyright 2015 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 <memory>
 
 #include "base/command_line.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/gl/gl_egl_api_implementation.h"
 #include "ui/gl/gl_surface_egl.h"
 #include "ui/gl/gl_switches.h"
 
 namespace gl {
 
 class EGLApiTest : public testing::Test {
  public:
   void SetUp() override {
     fake_client_extension_string_ = "";
     fake_extension_string_ = "";
 
     // TODO(dyen): Add a way to bind mock drivers for testing.
     g_driver_egl.ClearBindings();
     g_driver_egl.fn.eglInitializeFn = &FakeInitialize;
     g_driver_egl.fn.eglQueryStringFn = &FakeQueryString;
     g_driver_egl.fn.eglGetCurrentDisplayFn = &FakeGetCurrentDisplay;
     g_driver_egl.fn.eglGetDisplayFn = &FakeGetDisplay;
     g_driver_egl.fn.eglGetErrorFn = &FakeGetError;
+    g_driver_egl.fn.eglGetProcAddressFn = &FakeGetProcAddress;
   }
 
   void TearDown() override {
     g_current_egl_context = nullptr;
     api_.reset(nullptr);
     g_driver_egl.ClearBindings();
 
     fake_client_extension_string_ = "";
     fake_extension_string_ = "";
   }
@@ skipping 37 matching lines @@
 
   static EGLDisplay GL_BINDING_CALL FakeGetDisplay(
       EGLNativeDisplayType native_display) {
     return reinterpret_cast<EGLDisplay>(0x1);
   }
 
   static EGLint GL_BINDING_CALL FakeGetError() {
     return EGL_SUCCESS;
   }
 
+  static __eglMustCastToProperFunctionPointerType GL_BINDING_CALL
+  FakeGetProcAddress(const char* procname) {
+    return nullptr;
+  }
+
   std::pair<const char*, const char*> GetExtensions() {
     return std::make_pair(
         api_->eglQueryStringFn(EGL_NO_DISPLAY, EGL_EXTENSIONS),
         api_->eglQueryStringFn(api_->eglGetCurrentDisplayFn(), EGL_EXTENSIONS));
   }
 
  protected:
   static const char* fake_extension_string_;
   static const char* fake_client_extension_string_;
 
@@ skipping 40 matching lines @@
   base::CommandLine command_line(base::CommandLine::NO_PROGRAM);
   command_line.AppendSwitchASCII(switches::kDisableGLExtensions,
                                  kFakeDisabledExtensions);
   InitializeAPI(&command_line);
 
   EXPECT_STREQ(kFilteredClientExtensions, GetExtensions().first);
   EXPECT_STREQ(kFilteredExtensions, GetExtensions().second);
 }
 
 }  // namespace gl