Chromecast: adds Chromecast build # to User-Agent string.

R=lcwu@chromium.org
BUG=None

Review URL: https://codereview.chromium.org/604933002

Cr-Commit-Position: refs/heads/master@{#296762}

chromecast/chromecast.gyp

@@ -279,6 +279,9 @@
             'python',
             '<(version_py_path)',
             '-e', 'VERSION_FULL="<(version_full)"',
+            # Revision is taken from buildbot if available; otherwise, a dev string is used.
+            '-e', 'CAST_BUILD_REVISION="<!(echo ${BUILD_NUMBER:="local.${USER}"})"',
+            '-e', 'CAST_IS_DEBUG_BUILD=1 if "<(CONFIGURATION_NAME)" == "Debug" else 0',
             'common/version.h.in',
             '<@(_outputs)',
           ],

chromecast/common/version.h.in

@@ -8,5 +8,7 @@
 #define CHROMECAST_COMMON_VERSION_INFO_H_
 
 #define PRODUCT_VERSION "@VERSION_FULL@"
+#define CAST_BUILD_REVISION "@CAST_BUILD_REVISION@"
+#define CAST_IS_DEBUG_BUILD @CAST_IS_DEBUG_BUILD@
 
 #endif  // CHROMECAST_COMMON_VERSION_INFO_H_

chromecast/shell/common/cast_content_client.cc

@@ -14,7 +14,8 @@ namespace shell {
 
 std::string GetUserAgent() {
   std::string product = "Chrome/" PRODUCT_VERSION;
-  return content::BuildUserAgentFromProduct(product) + " CrKey";
+  return content::BuildUserAgentFromProduct(product) +
+      " CrKey" CAST_BUILD_REVISION;
 }
 
 CastContentClient::~CastContentClient() {