Add Fuchsia to the available Study::Platform enum values.

BUG=750917

Change-Id: Ia6a2f446a6ae8ec0228c12f587756561df0e6051
Reviewed-on: https://chromium-review.googlesource.com/597376
Commit-Queue: Wez <wez@chromium.org>
Reviewed-by: Jesse Doherty <jwd@chromium.org>
Cr-Commit-Position: refs/heads/master@{#491525}

components/variations/client_filterable_state.cc

@@ -20,6 +20,8 @@ Study::Platform ClientFilterableState::GetCurrentPlatform() {
   return Study::PLATFORM_CHROMEOS;
 #elif defined(OS_ANDROID)
   return Study::PLATFORM_ANDROID;
+#elif defined(OS_FUCHSIA)
+  return Study::PLATFORM_FUCHSIA;
 #elif defined(OS_LINUX) || defined(OS_BSD) || defined(OS_SOLARIS)
   // Default BSD and SOLARIS to Linux to not break those builds, although these
   // platforms are not officially supported by Chrome.

components/variations/proto/study.proto

@@ -189,6 +189,7 @@ message Study {
     PLATFORM_ANDROID         = 4;
     PLATFORM_IOS             = 5;
     PLATFORM_ANDROID_WEBVIEW = 6;
+    PLATFORM_FUCHSIA         = 7;
   }
 
   // Possible form factors Chrome is running on.

components/variations/study_filtering_unittest.cc

@@ -215,8 +215,7 @@ TEST(VariationsStudyFilteringTest, CheckStudyPlatform) {
       Study::PLATFORM_WINDOWS,         Study::PLATFORM_MAC,
       Study::PLATFORM_LINUX,           Study::PLATFORM_CHROMEOS,
       Study::PLATFORM_ANDROID,         Study::PLATFORM_IOS,
-      Study::PLATFORM_ANDROID_WEBVIEW,
-  };
+      Study::PLATFORM_ANDROID_WEBVIEW, Study::PLATFORM_FUCHSIA};
   ASSERT_EQ(Study::Platform_ARRAYSIZE, static_cast<int>(arraysize(platforms)));
   bool platform_added[arraysize(platforms)] = { 0 };