Remove third_party/golang.org/x/mobile as it is no longer used with Go 1.5.

third_party/go/src/golang.org/x/mobile/app/android.go

-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build android
-
-// Go runtime entry point for apps running on android.
-// Sets up everything the runtime needs and exposes
-// the entry point to JNI.
-
-package app
-
-/*
-#cgo LDFLAGS: -llog -landroid
-
-#include <android/log.h>
-#include <android/asset_manager.h>
-#include <android/configuration.h>
-#include <android/native_activity.h>
-
-#include <jni.h>
-#include <pthread.h>
-#include <stdlib.h>
-
-pthread_cond_t go_started_cond;
-pthread_mutex_t go_started_mu;
-int go_started;
-
-// current_vm is stored to initialize other cgo packages.
-//
-// As all the Go packages in a program form a single shared library,
-// there can only be one JNI_OnLoad function for iniitialization. In
-// OpenJDK there is JNI_GetCreatedJavaVMs, but this is not available
-// on android.
-JavaVM* current_vm;
-
-// current_ctx is Android's android.context.Context. May be NULL.
-jobject current_ctx;
-
-// current_native_activity is the Android ANativeActivity. May be NULL.
-ANativeActivity* current_native_activity;
-
-// asset_manager is the asset manager of the app.
-// For all-Go app, this is initialized in onCreate.
-// For go library app, this is set from the context passed to Go.run.
-AAssetManager* asset_manager;
-
-// build_auxv builds an ELF auxiliary vector for initializing the Go
-// runtime. While there does not appear to be any spec for this
-// format, there are some notes in
-//
-// Phrack, V. 0x0b, Issue 0x3a, P. 0x05.
-// http://phrack.org/issues/58/5.html
-//
-// Much of the time on linux the real auxv can be read from the file
-// /proc/self/auxv, however there are several conditions under which
-// Android apps cannot read this file (see a note to this effect in
-// sources/android/cpufeatures/cpu-features.c). So we construct a
-// fake one, working backwards from what the Go runtime wants to see
-// as defined by the code in src/runtime/os_linux_GOARCH.c.
-void build_auxv(uint32_t *auxv, size_t len);
-*/
-import "C"
-import (
-        "fmt"
-        "io"
-        "log"
-        "os"
-        "runtime"
-        "unsafe"
-
-        "golang.org/x/mobile/geom"
-)
-
-//export onCreate
-func onCreate(activity *C.ANativeActivity) {
-        C.asset_manager = activity.assetManager
-
-        config := C.AConfiguration_new()
-        C.AConfiguration_fromAssetManager(config, activity.assetManager)
-        density := C.AConfiguration_getDensity(config)
-        C.AConfiguration_delete(config)
-
-        var dpi int
-        switch density {
-        case C.ACONFIGURATION_DENSITY_DEFAULT:
-                dpi = 160
-        case C.ACONFIGURATION_DENSITY_LOW,
-                C.ACONFIGURATION_DENSITY_MEDIUM,
-                213, // C.ACONFIGURATION_DENSITY_TV
-                C.ACONFIGURATION_DENSITY_HIGH,
-                320, // ACONFIGURATION_DENSITY_XHIGH
-                480, // ACONFIGURATION_DENSITY_XXHIGH
-                640: // ACONFIGURATION_DENSITY_XXXHIGH
-                dpi = int(density)
-        case C.ACONFIGURATION_DENSITY_NONE:
-                log.Print("android device reports no screen density")
-                dpi = 72
-        default:
-                log.Print("android device reports unknown density: %d", density)
-                dpi = int(density) // This is a guess.
-        }
-
-        geom.PixelsPerPt = float32(dpi) / 72
-}
-
-//export onStart
-func onStart(activity *C.ANativeActivity) {
-}
-
-//export onResume
-func onResume(activity *C.ANativeActivity) {
-}
-
-//export onSaveInstanceState
-func onSaveInstanceState(activity *C.ANativeActivity, outSize *C.size_t) unsafe.Pointer {
-        return nil
-}
-
-//export onPause
-func onPause(activity *C.ANativeActivity) {
-}
-
-//export onStop
-func onStop(activity *C.ANativeActivity) {
-}
-
-//export onDestroy
-func onDestroy(activity *C.ANativeActivity) {
-}
-
-//export onWindowFocusChanged
-func onWindowFocusChanged(activity *C.ANativeActivity, hasFocus int) {
-}
-
-//export onNativeWindowCreated
-func onNativeWindowCreated(activity *C.ANativeActivity, w *C.ANativeWindow) {
-        windowCreated <- w
-}
-
-//export onNativeWindowResized
-func onNativeWindowResized(activity *C.ANativeActivity, window *C.ANativeWindow) {
-}
-
-//export onNativeWindowRedrawNeeded
-func onNativeWindowRedrawNeeded(activity *C.ANativeActivity, window *C.ANativeWindow) {
-}
-
-//export onNativeWindowDestroyed
-func onNativeWindowDestroyed(activity *C.ANativeActivity, window *C.ANativeWindow) {
-        windowDestroyed <- true
-}
-
-var queue *C.AInputQueue
-
-//export onInputQueueCreated
-func onInputQueueCreated(activity *C.ANativeActivity, q *C.AInputQueue) {
-        queue = q
-}
-
-//export onInputQueueDestroyed
-func onInputQueueDestroyed(activity *C.ANativeActivity, queue *C.AInputQueue) {
-        queue = nil
-}
-
-//export onContentRectChanged
-func onContentRectChanged(activity *C.ANativeActivity, rect *C.ARect) {
-}
-
-//export onConfigurationChanged
-func onConfigurationChanged(activity *C.ANativeActivity) {
-}
-
-//export onLowMemory
-func onLowMemory(activity *C.ANativeActivity) {
-}
-
-type androidState struct {
-}
-
-func (androidState) JavaVM() unsafe.Pointer {
-        return unsafe.Pointer(C.current_vm)
-}
-
-func (androidState) AndroidContext() unsafe.Pointer {
-        return unsafe.Pointer(C.current_ctx)
-}
-
-var (
-        windowDestroyed = make(chan bool)
-        windowCreated   = make(chan *C.ANativeWindow)
-)
-
-func openAsset(name string) (ReadSeekCloser, error) {
-        cname := C.CString(name)
-        defer C.free(unsafe.Pointer(cname))
-        a := &asset{
-                ptr:  C.AAssetManager_open(C.asset_manager, cname, C.AASSET_MODE_UNKNOWN),
-                name: name,
-        }
-        if a.ptr == nil {
-                return nil, a.errorf("open", "bad asset")
-        }
-        return a, nil
-}
-
-type asset struct {
-        ptr  *C.AAsset
-        name string
-}
-
-func (a *asset) errorf(op string, format string, v ...interface{}) error {
-        return &os.PathError{
-                Op:   op,
-                Path: a.name,
-                Err:  fmt.Errorf(format, v...),
-        }
-}
-
-func (a *asset) Read(p []byte) (n int, err error) {
-        n = int(C.AAsset_read(a.ptr, unsafe.Pointer(&p[0]), C.size_t(len(p))))
-        if n == 0 && len(p) > 0 {
-                return 0, io.EOF
-        }
-        if n < 0 {
-                return 0, a.errorf("read", "negative bytes: %d", n)
-        }
-        return n, nil
-}
-
-func (a *asset) Seek(offset int64, whence int) (int64, error) {
-        // TODO(crawshaw): use AAsset_seek64 if it is available.
-        off := C.AAsset_seek(a.ptr, C.off_t(offset), C.int(whence))
-        if off == -1 {
-                return 0, a.errorf("seek", "bad result for offset=%d, whence=%d", offset, whence)
-        }
-        return int64(off), nil
-}
-
-func (a *asset) Close() error {
-        C.AAsset_close(a.ptr)
-        return nil
-}
-
-func runStart(cb Callbacks) {
-        State = androidState{}
-
-        if cb.Start != nil {
-                cb.Start()
-        }
-}
-
-// notifyInitDone informs Java that the program is initialized.
-// A NativeActivity will not create a window until this is called.
-func notifyInitDone() {
-        C.pthread_mutex_lock(&C.go_started_mu)
-        C.go_started = 1
-        C.pthread_cond_signal(&C.go_started_cond)
-        C.pthread_mutex_unlock(&C.go_started_mu)
-}
-
-func run(cb Callbacks) {
-        // We want to keep the event loop on a consistent OS thread.
-        runtime.LockOSThread()
-
-        ctag := C.CString("Go")
-        cstr := C.CString("app.Run")
-        C.__android_log_write(C.ANDROID_LOG_INFO, ctag, cstr)
-        C.free(unsafe.Pointer(ctag))
-        C.free(unsafe.Pointer(cstr))
-
-        if C.current_native_activity == nil {
-                runStart(cb)
-                notifyInitDone()
-                select {}
-        } else {
-                notifyInitDone()
-                windowDrawLoop(cb, <-windowCreated, queue)
-        }
-}