Revert of Move SkGLContext and some GrGLInterface implementations to skgputest module

tools/gpu/gl/iOS/CreatePlatformGLContext_iOS.mm

Index: tools/gpu/gl/iOS/CreatePlatformGLContext_iOS.mm
diff --git a/tools/gpu/gl/iOS/CreatePlatformGLContext_iOS.mm b/tools/gpu/gl/iOS/CreatePlatformGLContext_iOS.mm
deleted file mode 100644
index d6507f280facb14f88aae857aabb99584a996157..0000000000000000000000000000000000000000
--- a/tools/gpu/gl/iOS/CreatePlatformGLContext_iOS.mm
+++ /dev/null
@@ -1,108 +0,0 @@
-
-/*
- * Copyright 2012 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include "GLContext.h"
-#import <OpenGLES/EAGL.h>
-#include <dlfcn.h>
-
-#define EAGLCTX ((EAGLContext*)(fEAGLContext))
-
-namespace {
-
-class IOSGLContext : public sk_gpu_test::GLContext {
-public:
-    IOSGLContext();
-    ~IOSGLContext() override;
-
-private:
-    void destroyGLContext();
-
-    void onPlatformMakeCurrent() const override;
-    void onPlatformSwapBuffers() const override;
-    GrGLFuncPtr onPlatformGetProcAddress(const char*) const override;
-
-    void* fEAGLContext;
-    void* fGLLibrary;
-};
-
-IOSGLContext::IOSGLContext()
-    : fEAGLContext(NULL)
-    , fGLLibrary(RTLD_DEFAULT) {
-
-    fEAGLContext = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES2];
-    [EAGLContext setCurrentContext:EAGLCTX];
-
-    SkAutoTUnref<const GrGLInterface> gl(GrGLCreateNativeInterface());
-    if (NULL == gl.get()) {
-        SkDebugf("Failed to create gl interface");
-        this->destroyGLContext();
-        return;
-    }
-    if (!gl->validate()) {
-        SkDebugf("Failed to validate gl interface");
-        this->destroyGLContext();
-        return;
-    }
-
-    fGLLibrary = dlopen(
-        "/System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGL.dylib",
-        RTLD_LAZY);
-
-    this->init(gl.release());
-}
-
-IOSGLContext::~IOSGLContext() {
-    this->teardown();
-    this->destroyGLContext();
-}
-
-void IOSGLContext::destroyGLContext() {
-    if (fEAGLContext) {
-        if ([EAGLContext currentContext] == EAGLCTX) {
-            [EAGLContext setCurrentContext:nil];
-        }
-        [EAGLCTX release];
-        fEAGLContext = NULL;
-    }
-    if (RTLD_DEFAULT != fGLLibrary) {
-        dlclose(fGLLibrary);
-    }
-}
-
-
-void IOSGLContext::onPlatformMakeCurrent() const {
-    if (![EAGLContext setCurrentContext:EAGLCTX]) {
-        SkDebugf("Could not set the context.\n");
-    }
-}
-
-void IOSGLContext::onPlatformSwapBuffers() const { }
-
-GrGLFuncPtr IOSGLContext::onPlatformGetProcAddress(const char* procName) const {
-    return reinterpret_cast<GrGLFuncPtr>(dlsym(fGLLibrary, procName));
-}
-
-}  // anonymous namespace
-
-namespace sk_gpu_test {
-GLContext *CreatePlatformGLContext(GrGLStandard forcedGpuAPI, GLContext *shareContext) {
-    SkASSERT(!shareContext);
-    if (shareContext) {
-        return NULL;
-    }
-    if (kGL_GrGLStandard == forcedGpuAPI) {
-        return NULL;
-    }
-    IOSGLContext *ctx = new IOSGLContext;
-    if (!ctx->isValid()) {
-        delete ctx;
-        return NULL;
-    }
-    return ctx;
-}
-}