Move core pieces of geolocation from chrome to content....

chrome/browser/geolocation/win7_location_api_win.cc

Index: chrome/browser/geolocation/win7_location_api_win.cc
===================================================================
--- chrome/browser/geolocation/win7_location_api_win.cc	(revision 76198)
+++ chrome/browser/geolocation/win7_location_api_win.cc	(working copy)
@@ -1,167 +0,0 @@
-// Copyright (c) 2010 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 "chrome/browser/geolocation/win7_location_api_win.h"
-
-#include "base/base_paths_win.h"
-#include "base/command_line.h"
-#include "base/file_path.h"
-#include "base/logging.h"
-#include "base/path_service.h"
-#include "base/scoped_ptr.h"
-#include "chrome/common/chrome_switches.h"
-#include "chrome/common/geoposition.h"
-
-namespace {
-const double kKnotsToMetresPerSecondConversionFactor = 0.5144;
-
-void ConvertKnotsToMetresPerSecond(double* knots) {
-  *knots *= kKnotsToMetresPerSecondConversionFactor;
-}
-
-HINSTANCE LoadWin7Library(const string16& lib_name) {
-  FilePath sys_dir;
-  PathService::Get(base::DIR_SYSTEM, &sys_dir);
-  return LoadLibrary(sys_dir.Append(lib_name).value().c_str());
-}
-}
-
-Win7LocationApi::Win7LocationApi()
-    : prop_lib_(0),
-      PropVariantToDouble_function_(0),
-      locator_(0) {
-}
-
-void Win7LocationApi::Init(HINSTANCE prop_library,
-    PropVariantToDoubleFunction PropVariantToDouble_function,
-    ILocation* locator) {
-  prop_lib_ = prop_library;
-  PropVariantToDouble_function_ = PropVariantToDouble_function;
-  locator_ = locator;
-}
-
-Win7LocationApi::~Win7LocationApi() {
-  if (prop_lib_ != NULL)
-    FreeLibrary(prop_lib_);
-}
-
-Win7LocationApi* Win7LocationApi::Create() {
-  if (!CommandLine::ForCurrentProcess()
-      ->HasSwitch(switches::kExperimentalLocationFeatures))
-    return NULL;
-
-  scoped_ptr<Win7LocationApi> result(new Win7LocationApi);
-  // Load probsys.dll
-  string16 lib_needed = L"propsys.dll";
-  HINSTANCE prop_lib = LoadWin7Library(lib_needed);
-  if (!prop_lib)
-    return NULL;
-  // Get pointer to function.
-  PropVariantToDoubleFunction PropVariantToDouble_function;
-  PropVariantToDouble_function =
-      reinterpret_cast<PropVariantToDoubleFunction>(
-          GetProcAddress(prop_lib, "PropVariantToDouble"));
-  if (!PropVariantToDouble_function) {
-    FreeLibrary(prop_lib);
-    return NULL;
-  }
-  // Create the ILocation object that receives location reports.
-  HRESULT result_type;
-  CComPtr<ILocation> locator;
-  result_type = CoCreateInstance(
-      CLSID_Location, NULL, CLSCTX_INPROC, IID_PPV_ARGS(&locator));
-  if (!SUCCEEDED(result_type)) {
-    FreeLibrary(prop_lib);
-    return NULL;
-  }
-  IID reports_needed[] = { IID_ILatLongReport };
-  result_type = locator->RequestPermissions(NULL, reports_needed, 1, TRUE);
-  result->Init(prop_lib, PropVariantToDouble_function, locator);
-  return result.release();
-}
-
-Win7LocationApi* Win7LocationApi::CreateForTesting(
-    PropVariantToDoubleFunction PropVariantToDouble_function,
-    ILocation* locator) {
-  Win7LocationApi* result = new Win7LocationApi;
-  result->Init(NULL, PropVariantToDouble_function, locator);
-  return result;
-}
-
-void Win7LocationApi::GetPosition(Geoposition* position) {
-  DCHECK(position);
-  position->error_code = Geoposition::ERROR_CODE_POSITION_UNAVAILABLE;
-  if (!locator_)
-    return;
-  // Try to get a position fix
-  if (!GetPositionIfFixed(position))
-    return;
-  position->error_code = Geoposition::ERROR_CODE_NONE;
-  if (!position->IsValidFix()) {
-    // GetPositionIfFixed returned true, yet we've not got a valid fix.
-    // This shouldn't happen; something went wrong in the conversion.
-    NOTREACHED() << "Invalid position from GetPositionIfFixed: lat,long "
-                 << position->latitude << "," << position->longitude
-                 << " accuracy " << position->accuracy << " time "
-                 << position->timestamp.ToDoubleT();
-    position->error_code = Geoposition::ERROR_CODE_POSITION_UNAVAILABLE;
-    position->error_message = "Bad fix from Win7 provider";
-  }
-}
-
-bool Win7LocationApi::GetPositionIfFixed(Geoposition* position) {
-  HRESULT result_type;
-  CComPtr<ILocationReport> location_report;
-  CComPtr<ILatLongReport> lat_long_report;
-  result_type = locator_->GetReport(IID_ILatLongReport, &location_report);
-  // Checks to see if location access is allowed.
-  if (result_type == E_ACCESSDENIED)
-    position->error_code = Geoposition::ERROR_CODE_PERMISSION_DENIED;
-  // Checks for any other errors while requesting a location report.
-  if (!SUCCEEDED(result_type))
-    return false;
-  result_type = location_report->QueryInterface(&lat_long_report);
-  if (!SUCCEEDED(result_type))
-    return false;
-  result_type = lat_long_report->GetLatitude(&position->latitude);
-  if (!SUCCEEDED(result_type))
-    return false;
-  result_type = lat_long_report->GetLongitude(&position->longitude);
-  if (!SUCCEEDED(result_type))
-    return false;
-  result_type = lat_long_report->GetErrorRadius(&position->accuracy);
-  if (!SUCCEEDED(result_type) || position->accuracy <= 0)
-    return false;
-  double temp_dbl;
-  result_type = lat_long_report->GetAltitude(&temp_dbl);
-  if (SUCCEEDED(result_type))
-    position->altitude = temp_dbl;
-  result_type = lat_long_report->GetAltitudeError(&temp_dbl);
-  if (SUCCEEDED(result_type))
-    position->altitude_accuracy = temp_dbl;
-  PROPVARIANT heading;
-  PropVariantInit(&heading);
-  result_type = lat_long_report->GetValue(
-      SENSOR_DATA_TYPE_TRUE_HEADING_DEGREES, &heading);
-  if (SUCCEEDED(result_type))
-    PropVariantToDouble_function_(heading, &position->heading);
-  PROPVARIANT speed;
-  PropVariantInit(&speed);
-  result_type = lat_long_report->GetValue(
-      SENSOR_DATA_TYPE_SPEED_KNOTS, &speed);
-  if (SUCCEEDED(result_type)) {
-    PropVariantToDouble_function_(speed, &position->speed);
-    ConvertKnotsToMetresPerSecond(&position->speed);
-  }
-  position->timestamp = base::Time::Now();
-  return true;
-}
-
-bool Win7LocationApi::SetHighAccuracy(bool acc) {
-  HRESULT result_type;
-  result_type = locator_->SetDesiredAccuracy(IID_ILatLongReport,
-      acc ? LOCATION_DESIRED_ACCURACY_HIGH :
-            LOCATION_DESIRED_ACCURACY_DEFAULT);
-  return SUCCEEDED(result_type);
-}