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 422c4aa5f065a795a129a30d9f22f7c27e87c1eb..f22bd1383f715ff35865bdf69a11de1294619c0f 100644
--- a/chrome/chrome_tests.gypi
+++ b/chrome/chrome_tests.gypi
@@ -1971,7 +1971,8 @@
         }],
         ['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',
               ],
@@ -2216,7 +2217,8 @@
         }],
         ['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',
               ],
@@ -2305,7 +2307,8 @@
         }],
         ['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',
               ],
@@ -2927,7 +2930,8 @@
             }],
             ['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',
                   ],