Add support for loading API keys from Info.plist on iOS and macOS.

google_apis/google_api_keys.cc

 // Copyright (c) 2012 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 "google_apis/google_api_keys.h"
 
 // If you add more includes to this list, you also need to add them to
 // google_api_keys_unittest.cc.
 
 #include <stddef.h>
 
 #include <memory>
 
 #include "base/command_line.h"
 #include "base/environment.h"
 #include "base/lazy_instance.h"
 #include "base/logging.h"
 #include "base/strings/stringize_macros.h"
 #include "google_apis/gaia/gaia_switches.h"
 
+#if defined(OS_MACOSX)
+#include "google_apis/google_api_keys_mac.h"
+#endif
+
 #if defined(GOOGLE_CHROME_BUILD) || defined(USE_OFFICIAL_GOOGLE_API_KEYS)
 #include "google_apis/internal/google_chrome_api_keys.h"
 #endif
 
 // Used to indicate an unset key/id/secret.  This works better with
 // various unit tests than leaving the token empty.
 #define DUMMY_API_TOKEN "dummytoken"
 
 #if !defined(GOOGLE_API_KEY)
 #define GOOGLE_API_KEY DUMMY_API_TOKEN
@@ skipping 198 matching lines @@
   // environment variable, or finally a value baked into the build.
   // |command_line_switch| may be NULL.
   static std::string CalculateKeyValue(const char* baked_in_value,
                                        const char* environment_variable_name,
                                        const char* command_line_switch,
                                        const std::string& default_if_unset,
                                        base::Environment* environment,
                                        base::CommandLine* command_line) {
     std::string key_value = baked_in_value;
     std::string temp;
+#if defined(OS_MACOSX)
+    // macOS and iOS can also override the API key with a value from the
+    // Info.plist.
+    temp = ::google_apis::GetAPIKeyFromInfoPlist(environment_variable_name);
+    if (!temp.empty()) {
+      key_value = temp;
+      VLOG(1) << "Overriding API key " << environment_variable_name
+              << " with value " << key_value << " from Info.plist.";
+    }
+#endif
     if (environment->GetVar(environment_variable_name, &temp)) {
       key_value = temp;
       VLOG(1) << "Overriding API key " << environment_variable_name
               << " with value " << key_value << " from environment variable.";
     }
 
     if (command_line_switch && command_line->HasSwitch(command_line_switch)) {
       key_value = command_line->GetSwitchValueASCII(command_line_switch);
       VLOG(1) << "Overriding API key " << environment_variable_name
               << " with value " << key_value << " from command-line switch.";
@@ skipping 70 matching lines @@
 
 bool IsGoogleChromeAPIKeyUsed() {
 #if defined(GOOGLE_CHROME_BUILD) || defined(USE_OFFICIAL_GOOGLE_API_KEYS)
   return true;
 #else
   return false;
 #endif
 }
 
 }  // namespace google_apis