Stop using __has_include<Cocoa/Cocoa.h>

__has_include seems to cause problems with goma builds.
Instead, detect iOS vs MacOS using TargetConditionals.h. Also use
plain C++ instead of Objective-C++ when possible.

Bug: angleproject:3439
Bug: 1015591
Change-Id: I816624e0cdc54ad3a18d3891b4efecf6fe640574
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1894243
Reviewed-by: Kenneth Russell <kbr@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: James Darpinian <jdarpinian@chromium.org>

src/common/platform.h

@@ -114,4 +114,13 @@
 #    endif  // defined(__GNUC__) || defined(__clang__)
 #endif      // !defined(ANGLE_LIKELY) || !defined(ANGLE_UNLIKELY)
 
+#ifdef ANGLE_PLATFORM_APPLE
+#    include <TargetConditionals.h>
+#    if TARGET_OS_OSX
+#        define ANGLE_PLATFORM_MACOS 1
+#    elif TARGET_OS_IOS
+#        define ANGLE_PLATFORM_IOS 1
+#    endif
+#endif
+
 #endif  // COMMON_PLATFORM_H_

src/gpu_info_util/SystemInfo_mac.mm

@@ -4,9 +4,11 @@
 // found in the LICENSE file.
 //
 
-// SystemInfo_mac.cpp: implementation of the Mac-specific parts of SystemInfo.h
+// SystemInfo_mac.mm: implementation of the Mac-specific parts of SystemInfo.h
 
-#if __has_include(<Cocoa/Cocoa.h>)
+#include "common/platform.h"
+
+#ifdef ANGLE_PLATFORM_MACOS
 
 #    include "gpu_info_util/SystemInfo_internal.h"
 
@@ -242,4 +244,4 @@ bool GetSystemInfo(SystemInfo *info)
 
 }  // namespace angle
 
-#endif  // __has_include(<Cocoa/Cocoa.h>)
+#endif  // ANGLE_PLATFORM_MACOS

src/libANGLE/renderer/gl/cgl/DeviceCGL.cpp

@@ -6,7 +6,9 @@
 
 // DeviceCGL.cpp: CGL implementation of egl::Device
 
-#if __has_include(<Cocoa/Cocoa.h>)
+#include "common/platform.h"
+
+#ifdef ANGLE_PLATFORM_MACOS
 
 #    include "libANGLE/renderer/gl/cgl/DeviceCGL.h"
 
@@ -56,4 +58,4 @@ void DeviceCGL::generateExtensions(egl::DeviceExtensions *outExtensions) const
 
 }  // namespace rx
 
-#endif  // __has_include(<Cocoa/Cocoa.h>)
+#endif  // ANGLE_PLATFORM_MACOS

src/libANGLE/renderer/gl/cgl/DisplayCGL.mm

@@ -6,7 +6,9 @@
 
 // DisplayCGL.mm: CGL implementation of egl::Display
 
-#if __has_include(<Cocoa/Cocoa.h>)
+#include "common/platform.h"
+
+#ifdef ANGLE_PLATFORM_MACOS
 
 #    include "libANGLE/renderer/gl/cgl/DisplayCGL.h"
 
@@ -446,4 +448,4 @@ void DisplayCGL::populateFeatureList(angle::FeatureList *features)
 }
 }
 
-#endif  // __has_include(<Cocoa/Cocoa.h>)
+#endif  // ANGLE_PLATFORM_MACOS

src/libANGLE/renderer/gl/cgl/IOSurfaceSurfaceCGL.cpp

@@ -7,13 +7,15 @@
 // PBufferSurfaceCGL.cpp: an implementation of PBuffers created from IOSurfaces using
 //                        EGL_ANGLE_iosurface_client_buffer
 
-#if __has_include(<Cocoa/Cocoa.h>)
+#include "common/platform.h"
+
+#ifdef ANGLE_PLATFORM_MACOS
 
 #    include "libANGLE/renderer/gl/cgl/IOSurfaceSurfaceCGL.h"
 
-#    import <Cocoa/Cocoa.h>
 #    include <IOSurface/IOSurface.h>
 #    include <OpenGL/CGLIOSurface.h>
+#    include <OpenGL/OpenGL.h>
 
 #    include "common/debug.h"
 #    include "libANGLE/AttributeMap.h"
@@ -333,4 +335,4 @@ bool IOSurfaceSurfaceCGL::hasEmulatedAlphaChannel() const
 
 }  // namespace rx
 
-#endif  // __has_include(<Cocoa/Cocoa.h>)
+#endif  // ANGLE_PLATFORM_MACOS

src/libANGLE/renderer/gl/cgl/PbufferSurfaceCGL.cpp

@@ -9,11 +9,15 @@
 
 #include "libANGLE/renderer/gl/cgl/PbufferSurfaceCGL.h"
 
-#include "common/debug.h"
-#include "libANGLE/renderer/gl/FunctionsGL.h"
-#include "libANGLE/renderer/gl/FramebufferGL.h"
-#include "libANGLE/renderer/gl/RendererGL.h"
-#include "libANGLE/renderer/gl/StateManagerGL.h"
+#include "common/platform.h"
+
+#ifdef ANGLE_PLATFORM_MACOS
+
+#    include "common/debug.h"
+#    include "libANGLE/renderer/gl/FramebufferGL.h"
+#    include "libANGLE/renderer/gl/FunctionsGL.h"
+#    include "libANGLE/renderer/gl/RendererGL.h"
+#    include "libANGLE/renderer/gl/StateManagerGL.h"
 
 namespace rx
 {
@@ -29,8 +33,7 @@ PbufferSurfaceCGL::PbufferSurfaceCGL(const egl::SurfaceState &state,
       mStateManager(renderer->getStateManager()),
       mColorRenderbuffer(0),
       mDSRenderbuffer(0)
-{
-}
+{}
 
 PbufferSurfaceCGL::~PbufferSurfaceCGL()
 {
@@ -98,9 +101,7 @@ egl::Error PbufferSurfaceCGL::releaseTexImage(const gl::Context *context, EGLint
     return egl::NoError();
 }
 
-void PbufferSurfaceCGL::setSwapInterval(EGLint interval)
-{
-}
+void PbufferSurfaceCGL::setSwapInterval(EGLint interval) {}
 
 EGLint PbufferSurfaceCGL::getWidth() const
 {
@@ -141,3 +142,5 @@ FramebufferImpl *PbufferSurfaceCGL::createDefaultFramebuffer(const gl::Context *
 }
 
 }  // namespace rx
+
+#endif  // ANGLE_PLATFORM_MACOS

src/libANGLE/renderer/gl/cgl/RendererCGL.cpp

@@ -8,7 +8,11 @@
 
 #include "libANGLE/renderer/gl/cgl/RendererCGL.h"
 
-#include "libANGLE/renderer/gl/cgl/DisplayCGL.h"
+#include "common/platform.h"
+
+#ifdef ANGLE_PLATFORM_MACOS
+
+#    include "libANGLE/renderer/gl/cgl/DisplayCGL.h"
 
 namespace rx
 {
@@ -27,3 +31,5 @@ WorkerContext *RendererCGL::createWorkerContext(std::string *infoLog)
 }
 
 }  // namespace rx
+
+#endif  // ANGLE_PLATFORM_MACOS

src/libANGLE/renderer/gl/cgl/WindowSurfaceCGL.mm

@@ -6,7 +6,9 @@
 
 // WindowSurfaceCGL.cpp: CGL implementation of egl::Surface for windows
 
-#if __has_include(<Cocoa/Cocoa.h>)
+#include "common/platform.h"
+
+#ifdef ANGLE_PLATFORM_MACOS
 
 #    include "libANGLE/renderer/gl/cgl/WindowSurfaceCGL.h"
 
@@ -337,4 +339,4 @@ FramebufferImpl *WindowSurfaceCGL::createDefaultFramebuffer(const gl::Context *c
 
 }  // namespace rx
 
-#endif  // __has_include(<Cocoa/Cocoa.h>)
+#endif  // ANGLE_PLATFORM_MACOS

src/libGLESv2.gni

@@ -854,11 +854,11 @@ libangle_gl_cgl_sources = [
   "src/libANGLE/renderer/gl/cgl/DeviceCGL.h",
   "src/libANGLE/renderer/gl/cgl/DisplayCGL.mm",
   "src/libANGLE/renderer/gl/cgl/DisplayCGL.h",
-  "src/libANGLE/renderer/gl/cgl/IOSurfaceSurfaceCGL.mm",
+  "src/libANGLE/renderer/gl/cgl/IOSurfaceSurfaceCGL.cpp",
   "src/libANGLE/renderer/gl/cgl/IOSurfaceSurfaceCGL.h",
-  "src/libANGLE/renderer/gl/cgl/RendererCGL.mm",
+  "src/libANGLE/renderer/gl/cgl/RendererCGL.cpp",
   "src/libANGLE/renderer/gl/cgl/RendererCGL.h",
-  "src/libANGLE/renderer/gl/cgl/PbufferSurfaceCGL.mm",
+  "src/libANGLE/renderer/gl/cgl/PbufferSurfaceCGL.cpp",
   "src/libANGLE/renderer/gl/cgl/PbufferSurfaceCGL.h",
   "src/libANGLE/renderer/gl/cgl/WindowSurfaceCGL.mm",
   "src/libANGLE/renderer/gl/cgl/WindowSurfaceCGL.h",