Support plugin version mid-portions with leading zeros.

base/version_unittest.cc

Index: base/version_unittest.cc
diff --git a/base/version_unittest.cc b/base/version_unittest.cc
index 3119c3972a73b157a762c60c7c12328c0b8c5807..46d8255d15379d7a7553043e4bd1ab0972b6498b 100644
--- a/base/version_unittest.cc
+++ b/base/version_unittest.cc
@@ -41,16 +41,22 @@ TEST(VersionTest, GetVersionFromString) {
     {".", 0, false},
     {" . ", 0, false},
     {"0", 1, true},
+    {"0.", 0, false},
     {"0.0", 2, true},
     {"65537.0", 0, false},
     {"-1.0", 0, false},
     {"1.-1.0", 0, false},
+    {"1,--1.0", 0, false},
     {"+1.0", 0, false},
     {"1.+1.0", 0, false},
+    {"1+1.0", 0, false},
+    {"++1.0", 0, false},
     {"1.0a", 0, false},
     {"1.2.3.4.5.6.7.8.9.0", 10, true},
     {"02.1", 0, false},
+    {"0.01", 2, true},
     {"f.1", 0, false},
+    {"15.007.20011", 3, true},
   };
 
   for (size_t i = 0; i < arraysize(cases); ++i) {
@@ -77,6 +83,7 @@ TEST(VersionTest, Compare) {
     {"1.1", "1.0.1", 1},
     {"1.0.0", "1.0", 0},
     {"1.0.3", "1.0.20", -1},
+    {"11.0.10", "15.007.20011", -1},
   };
   for (size_t i = 0; i < arraysize(cases); ++i) {
     Version lhs(cases[i].lhs);