Make some global pointers const void* const.

android_webview/browser/browser_view_renderer.cc

Index: android_webview/browser/browser_view_renderer.cc
diff --git a/android_webview/browser/browser_view_renderer.cc b/android_webview/browser/browser_view_renderer.cc
index 4bf5e4bd1c06dd6214f0e020d4474ee9f39f2b8f..07dae10e018eb970f87989bbd75927e1e4388d51 100644
--- a/android_webview/browser/browser_view_renderer.cc
+++ b/android_webview/browser/browser_view_renderer.cc
@@ -36,13 +36,14 @@ const int64 kFallbackTickTimeoutInMilliseconds = 100;
 const size_t kMemoryMultiplier = 20;
 const size_t kBytesPerPixel = 4;
 const size_t kMemoryAllocationStep = 5 * 1024 * 1024;
-uint64 g_memory_override_in_bytes = 0u;
+uint64_t g_memory_override_in_bytes = 0u;
 
-const void* kBrowserViewRendererUserDataKey = &kBrowserViewRendererUserDataKey;
+const void* const kBrowserViewRendererUserDataKey =
+    &kBrowserViewRendererUserDataKey;
 
 class BrowserViewRendererUserData : public base::SupportsUserData::Data {
  public:
-  BrowserViewRendererUserData(BrowserViewRenderer* ptr) : bvr_(ptr) {}
+  explicit BrowserViewRendererUserData(BrowserViewRenderer* ptr) : bvr_(ptr) {}
 
   static BrowserViewRenderer* GetBrowserViewRenderer(
       content::WebContents* web_contents) {