Add use_allocator instead of linux_use_tcmalloc to switch the allocator.

chrome/chrome_tests.gypi

Index: chrome/chrome_tests.gypi
diff --git a/chrome/chrome_tests.gypi b/chrome/chrome_tests.gypi
index 853fbbbea7e9b1ba15a46700e331033fa9884b0e..831ea2648412891eb46f891f512132d1c75ce002 100644
--- a/chrome/chrome_tests.gypi
+++ b/chrome/chrome_tests.gypi
@@ -2011,7 +2011,8 @@
         }],
         ['os_posix == 1 and OS != "mac" and OS != "android"', {
           'conditions': [
-            ['linux_use_tcmalloc==1', {
+            # TODO(dmikurube): Kill linux_use_tcmalloc. http://crbug.com/345554
+            ['(use_allocator!="none" and use_allocator!="see_use_tcmalloc") or (use_allocator=="see_use_tcmalloc" and linux_use_tcmalloc==1)', {
               'dependencies': [
                 '../base/allocator/allocator.gyp:allocator',
               ],
@@ -2256,7 +2257,8 @@
         }],
         ['os_posix == 1 and OS != "mac" and OS != "android"', {
           'conditions': [
-            ['linux_use_tcmalloc==1', {
+            # TODO(dmikurube): Kill linux_use_tcmalloc. http://crbug.com/345554
+            ['(use_allocator!="none" and use_allocator!="see_use_tcmalloc") or (use_allocator=="see_use_tcmalloc" and linux_use_tcmalloc==1)', {
               'dependencies': [
                 '../base/allocator/allocator.gyp:allocator',
               ],
@@ -2345,7 +2347,8 @@
         }],
         ['os_posix == 1 and OS != "mac" and OS != "android"', {
           'conditions': [
-            ['linux_use_tcmalloc==1', {
+            # TODO(dmikurube): Kill linux_use_tcmalloc. http://crbug.com/345554
+            ['(use_allocator!="none" and use_allocator!="see_use_tcmalloc") or (use_allocator=="see_use_tcmalloc" and linux_use_tcmalloc==1)', {
               'dependencies': [
                 '../base/allocator/allocator.gyp:allocator',
               ],
@@ -2950,7 +2953,8 @@
             }],
             ['os_posix == 1 and OS != "mac" and OS != "android"', {
               'conditions': [
-                ['linux_use_tcmalloc==1', {
+                # TODO(dmikurube): Kill linux_use_tcmalloc. http://crbug.com/345554
+                ['(use_allocator!="none" and use_allocator!="see_use_tcmalloc") or (use_allocator=="see_use_tcmalloc" and linux_use_tcmalloc==1)', {
                   'dependencies': [
                     '../base/allocator/allocator.gyp:allocator',
                   ],