Fix remaining compiler warnings in translator_common.

src/build_angle.gyp

@@ -3,6 +3,9 @@
 # found in the LICENSE file.
 
 {
+  'variables': {
+    'chromium_code': 1,
+  },
   'target_defaults': {
     'defines': [
       'ANGLE_DISABLE_TRACE',
@@ -13,9 +16,6 @@
     {
       'target_name': 'translator_common',
       'type': 'static_library',
-      'variables': {
-        'warn_as_error': 0,
-      },
       'include_dirs': [
         '.',
         '../include',

src/common/version.h

 #define MAJOR_VERSION 1
 #define MINOR_VERSION 0
 #define BUILD_VERSION 0
-#define BUILD_REVISION 961
+#define BUILD_REVISION 962
 
 #define STRINGIFY(x) #x
 #define MACRO_STRINGIFY(x) STRINGIFY(x)

src/compiler/glslang.l

@@ -482,6 +482,8 @@ void updateExtensionBehavior(const char* extName, const char* behavior)
                 msg = TString("extension '") + extName + "' is not supported";
                 context->infoSink.info.message(EPrefixWarning, msg.c_str(), yylineno); 
                 break;
+            default:
+                break;
             }
             return;
         } else

src/compiler/glslang_lex.cpp

@@ -3130,6 +3130,8 @@ void updateExtensionBehavior(const char* extName, const char* behavior)
                 msg = TString("extension '") + extName + "' is not supported";
                 context->infoSink.info.message(EPrefixWarning, msg.c_str(), yylineno); 
                 break;
+            default:
+                break;
             }
             return;
         } else

src/compiler/glslang_tab.cpp

@@ -1726,12 +1726,8 @@ yydestruct (yymsg, yytype, yyvaluep, context)
     yymsg = "Deleting";
   YY_SYMBOL_PRINT (yymsg, yytype, yyvaluep, yylocationp);
 
-  switch (yytype)
-    {
-
-      default:
-	break;
-    }
+  // Delete any automatically generated switch with no cases code that appears
+  // here. It will produce a warning (and therefore an error) in MSVC.
 }
 
 /* Prevent warnings from -Wmissing-prototypes.  */

src/compiler/translator_common.vcproj

@@ -53,6 +53,7 @@
 				WarningLevel="3"
 				Detect64BitPortabilityProblems="false"
 				DebugInformationFormat="4"
+				WarnAsError="true"
 			/>
 			<Tool
 				Name="VCManagedResourceCompilerTool"
@@ -116,6 +117,7 @@
 				WarningLevel="3"
 				Detect64BitPortabilityProblems="false"
 				DebugInformationFormat="3"
+				WarnAsError="true"
 			/>
 			<Tool
 				Name="VCManagedResourceCompilerTool"
@@ -180,6 +182,7 @@
 				WarningLevel="3"
 				Detect64BitPortabilityProblems="false"
 				DebugInformationFormat="3"
+				WarnAsError="true"
 			/>
 			<Tool
 				Name="VCManagedResourceCompilerTool"
@@ -244,6 +247,7 @@
 				WarningLevel="3"
 				Detect64BitPortabilityProblems="false"
 				DebugInformationFormat="3"
+				WarnAsError="true"
 			/>
 			<Tool
 				Name="VCManagedResourceCompilerTool"