Splitting assumenosideeffects Log to webview and chrome

chrome/android/java/proguard.flags

 # As of August 11, 2016, obfuscation was tested and passed on the trybots,
 # saving us 660kb on our .dex size and 53kb memory/process. Enable obfuscation
 # as soon as Crash supports ReTrace's deobfuscation of stack traces.
 #
 # To enable obfuscation, remove the -keepnames rule for
 # com.google.android.apps.chrome.** and org.chromium.**, and uncomment the
 # following two lines:
 # -renamesourcefileattribute PG
 # -repackageclasses ""
 
@@ skipping 14 matching lines @@
 -optimizationpasses 3
 
 # Class merging messes up stacktraces beyond the point of them being
 # deobfuscatable. If turned on, it would give us a 2% reduction in .dex size.
 -optimizations !class/merging/*
 
 # Allowing Proguard to change modifiers. This change shrinks the .dex size by
 # ~1.1%, and reduces the method count by ~4.3%.
 -allowaccessmodification
 
+# Allows Proguard freedom in removing these log related calls. We ask for debug
+# and verbose logs to be stripped out in base.Log, so we are just ensuring we
+# get rid of all other debug/verbose logs.
+-assumenosideeffects class android.util.Log {
+  static *** d(...);
+  static *** v(...);
+  static *** isLoggable(...);
+}
+
 # Fragments are loaded using reflection via Fragment.instantiate(Context,String)
 # This can be improved upon - see crbug.com/622023.
 -keep public class com.google.android.apps.chrome** extends android.app.Fragment
 -keep public class org.chromium** extends android.app.Fragment
 
 # These classes aren't themselves referenced, but __ProcessService[0,1,2...] are
 # referenced, and we look up these services by appending a number onto the name
 # of the base class. Thus, we need to keep the base class name around so that
 # the child classes can be looked up.
 -keep class org.chromium.content.app.SandboxedProcessService
@@ skipping 10 matching lines @@
   public <init>(...);
 }
 
 # Google Play Services warnings are about its resources.
 -dontwarn com.google.android.gms.R**
 
 # The support library contains references to newer platform versions.
 # Don't warn about those in case this app is linking against an older
 # platform version.  We know about them, and they are safe.
 -dontwarn android.support.**